libata: update libata LLDs to use devres

Update libata LLDs to use devres.  Core layer is already converted to
support managed LLDs.  This patch simplifies initialization and fixes
many resource related bugs in init failure and detach path.  For
example, all converted drivers now handle ata_device_add() failure
gracefully without excessive resource rollback code.

As most resources are released automatically on driver detach, many
drivers don't need or can do with much simpler ->{port|host}_stop().
In general, stop callbacks are need iff port or host needs to be given
commands to shut it down.  Note that freezing is enough in many cases
and ports are automatically frozen before being detached.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

59 files changed, 355 insertions, 1245 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index d72568392e6..20ab3ffce55 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -45,7 +45,6 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 
 #define DRV_NAME	"ahci"
 #define DRV_VERSION	"2.0"
@@ -166,9 +165,6 @@ enum {
 	PORT_CMD_ICC_PARTIAL	= (0x2 << 28), /* Put i/f in partial state */
 	PORT_CMD_ICC_SLUMBER	= (0x6 << 28), /* Put i/f in slumber state */
 
-	/* hpriv->flags bits */
-	AHCI_FLAG_MSI		= (1 << 0),
-
 	/* ap->flags bits */
 	AHCI_FLAG_NO_NCQ		= (1 << 24),
 	AHCI_FLAG_IGN_IRQ_IF_ERR	= (1 << 25), /* ignore IRQ_IF_ERR */
@@ -191,7 +187,6 @@ struct ahci_sg {
 };
 
 struct ahci_host_priv {
-	unsigned long		flags;
 	u32			cap;	/* cache of HOST_CAP register */
 	u32			port_map; /* cache of HOST_PORTS_IMPL reg */
 };
@@ -229,7 +224,6 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg);
 static int ahci_port_resume(struct ata_port *ap);
 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
 static int ahci_pci_device_resume(struct pci_dev *pdev);
-static void ahci_remove_one (struct pci_dev *pdev);
 
 static struct scsi_host_template ahci_sht = {
 	.module			= THIS_MODULE,
@@ -441,9 +435,9 @@ static struct pci_driver ahci_pci_driver = {
 	.name			= DRV_NAME,
 	.id_table		= ahci_pci_tbl,
 	.probe			= ahci_init_one,
+	.remove			= ata_pci_remove_one,
 	.suspend		= ahci_pci_device_suspend,
 	.resume			= ahci_pci_device_resume,
-	.remove			= ahci_remove_one,
 };
 
 
@@ -1426,23 +1420,18 @@ static int ahci_port_start(struct ata_port *ap)
 	dma_addr_t mem_dma;
 	int rc;
 
-	pp = kmalloc(sizeof(*pp), GFP_KERNEL);
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
 	if (!pp)
 		return -ENOMEM;
-	memset(pp, 0, sizeof(*pp));
 
 	rc = ata_pad_alloc(ap, dev);
-	if (rc) {
-		kfree(pp);
+	if (rc)
 		return rc;
-	}
 
-	mem = dma_alloc_coherent(dev, AHCI_PORT_PRIV_DMA_SZ, &mem_dma, GFP_KERNEL);
-	if (!mem) {
-		ata_pad_free(ap, dev);
-		kfree(pp);
+	mem = dmam_alloc_coherent(dev, AHCI_PORT_PRIV_DMA_SZ, &mem_dma,
+				  GFP_KERNEL);
+	if (!mem)
 		return -ENOMEM;
-	}
 	memset(mem, 0, AHCI_PORT_PRIV_DMA_SZ);
 
 	/*
@@ -1484,9 +1473,7 @@ static int ahci_port_start(struct ata_port *ap)
 
 static void ahci_port_stop(struct ata_port *ap)
 {
-	struct device *dev = ap->host->dev;
 	struct ahci_host_priv *hpriv = ap->host->private_data;
-	struct ahci_port_priv *pp = ap->private_data;
 	void __iomem *mmio = ap->host->mmio_base;
 	void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
 	const char *emsg = NULL;
@@ -1496,12 +1483,6 @@ static void ahci_port_stop(struct ata_port *ap)
 	rc = ahci_deinit_port(port_mmio, hpriv->cap, &emsg);
 	if (rc)
 		ata_port_printk(ap, KERN_WARNING, "%s (%d)\n", emsg, rc);
-
-	ap->private_data = NULL;
-	dma_free_coherent(dev, AHCI_PORT_PRIV_DMA_SZ,
-			  pp->cmd_slot, pp->cmd_slot_dma);
-	ata_pad_free(ap, dev);
-	kfree(pp);
 }
 
 static void ahci_setup_port(struct ata_ioports *port, unsigned long base,
@@ -1669,15 +1650,15 @@ static void ahci_print_info(struct ata_probe_ent *probe_ent)
 		);
 }
 
-static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
-	struct ata_probe_ent *probe_ent = NULL;
+	unsigned int board_idx = (unsigned int) ent->driver_data;
+	struct device *dev = &pdev->dev;
+	struct ata_probe_ent *probe_ent;
 	struct ahci_host_priv *hpriv;
 	unsigned long base;
 	void __iomem *mmio_base;
-	unsigned int board_idx = (unsigned int) ent->driver_data;
-	int have_msi, pci_dev_busy = 0;
 	int rc;
 
 	VPRINTK("ENTER\n");
@@ -1694,46 +1675,34 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 			return -ENODEV;
 	}
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
-	if (pci_enable_msi(pdev) == 0)
-		have_msi = 1;
-	else {
+	if (pci_enable_msi(pdev))
 		pci_intx(pdev, 1);
-		have_msi = 0;
-	}
 
-	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_msi;
-	}
+	probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
-	memset(probe_ent, 0, sizeof(*probe_ent));
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
-	mmio_base = pci_iomap(pdev, AHCI_PCI_BAR, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, AHCI_PCI_BAR, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 	base = (unsigned long) mmio_base;
 
-	hpriv = kmalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv) {
-		rc = -ENOMEM;
-		goto err_out_iounmap;
-	}
-	memset(hpriv, 0, sizeof(*hpriv));
+	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!hpriv)
+		return -ENOMEM;
 
 	probe_ent->sht		= ahci_port_info[board_idx].sht;
 	probe_ent->port_flags	= ahci_port_info[board_idx].flags;
@@ -1746,13 +1715,10 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	probe_ent->mmio_base = mmio_base;
 	probe_ent->private_data = hpriv;
 
-	if (have_msi)
-		hpriv->flags |= AHCI_FLAG_MSI;
-
 	/* initialize adapter */
 	rc = ahci_host_init(probe_ent);
 	if (rc)
-		goto err_out_hpriv;
+		return rc;
 
 	if (!(probe_ent->port_flags & AHCI_FLAG_NO_NCQ) &&
 	    (hpriv->cap & HOST_CAP_NCQ))
@@ -1760,48 +1726,11 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	ahci_print_info(probe_ent);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
+	devm_kfree(dev, probe_ent);
 	return 0;
-
-err_out_hpriv:
-	kfree(hpriv);
-err_out_iounmap:
-	pci_iounmap(pdev, mmio_base);
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_msi:
-	if (have_msi)
-		pci_disable_msi(pdev);
-	else
-		pci_intx(pdev, 0);
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
-}
-
-static void ahci_remove_one(struct pci_dev *pdev)
-{
-	struct device *dev = pci_dev_to_dev(pdev);
-	struct ata_host *host = dev_get_drvdata(dev);
-	struct ahci_host_priv *hpriv = host->private_data;
-
-	ata_host_remove(host);
-
-	pci_iounmap(pdev, host->mmio_base);
-
-	if (hpriv->flags & AHCI_FLAG_MSI)
-		pci_disable_msi(pdev);
-	else
-		pci_intx(pdev, 0);
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-	dev_set_drvdata(dev, NULL);
-	kfree(hpriv);
 }
 
 static int __init ahci_init(void)
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index 24af56081b5..a25cbd653b0 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -152,8 +152,6 @@ static struct ata_port_operations generic_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int all_generic_ide;		/* Set to claim all devices */
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index f15ef88ba00..c6bf1a338d1 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -154,7 +154,6 @@ struct piix_host_priv {
 
 static int piix_init_one (struct pci_dev *pdev,
 				    const struct pci_device_id *ent);
-static void piix_host_stop(struct ata_host *host);
 static void piix_pata_error_handler(struct ata_port *ap);
 static void ich_pata_error_handler(struct ata_port *ap);
 static void piix_sata_error_handler(struct ata_port *ap);
@@ -311,8 +310,6 @@ static const struct ata_port_operations piix_pata_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= piix_host_stop,
 };
 
 static const struct ata_port_operations ich_pata_ops = {
@@ -344,8 +341,6 @@ static const struct ata_port_operations ich_pata_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= piix_host_stop,
 };
 
 static const struct ata_port_operations piix_sata_ops = {
@@ -374,8 +369,6 @@ static const struct ata_port_operations piix_sata_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= piix_host_stop,
 };
 
 static const struct piix_map_db ich5_map_db = {
@@ -1072,6 +1065,7 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
 static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
+	struct device *dev = &pdev->dev;
 	struct ata_port_info port_info[2];
 	struct ata_port_info *ppinfo[2] = { &port_info[0], &port_info[1] };
 	struct piix_host_priv *hpriv;
@@ -1085,7 +1079,7 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!in_module_init)
 		return -ENODEV;
 
-	hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
+	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
 	if (!hpriv)
 		return -ENOMEM;
 
@@ -1135,15 +1129,6 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	return ata_pci_init_one(pdev, ppinfo, 2);
 }
 
-static void piix_host_stop(struct ata_host *host)
-{
-	struct piix_host_priv *hpriv = host->private_data;
-
-	ata_host_stop(host);
-
-	kfree(hpriv);
-}
-
 static int __init piix_init(void)
 {
 	int rc;
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index fde5ce9f7ea..f4fdb10211e 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -376,8 +376,6 @@ static struct ata_port_operations ali_early_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -417,8 +415,6 @@ static struct ata_port_operations ali_20_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -455,8 +451,6 @@ static struct ata_port_operations ali_c2_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -492,8 +486,6 @@ static struct ata_port_operations ali_c5_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index a6b330089f2..7ee0c83c657 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -368,8 +368,6 @@ static struct ata_port_operations amd33_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations amd66_port_ops = {
@@ -402,8 +400,6 @@ static struct ata_port_operations amd66_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations amd100_port_ops = {
@@ -436,8 +432,6 @@ static struct ata_port_operations amd100_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations amd133_port_ops = {
@@ -470,8 +464,6 @@ static struct ata_port_operations amd133_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations nv100_port_ops = {
@@ -504,8 +496,6 @@ static struct ata_port_operations nv100_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations nv133_port_ops = {
@@ -538,8 +528,6 @@ static struct ata_port_operations nv133_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index 37bc1323bda..5baea122222 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -347,8 +347,6 @@ static const struct ata_port_operations artop6210_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static const struct ata_port_operations artop6260_ops = {
@@ -379,8 +377,6 @@ static const struct ata_port_operations artop6260_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 504e1dbfffd..2bfb99493a7 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -258,8 +258,6 @@ static struct ata_port_operations atiixp_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 449162cbf93..d97aa9bb050 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -319,8 +319,6 @@ static struct ata_port_operations cmd64x_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations cmd646r1_port_ops = {
@@ -353,8 +351,6 @@ static struct ata_port_operations cmd646r1_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations cmd648_port_ops = {
@@ -387,8 +383,6 @@ static struct ata_port_operations cmd648_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 476b87963f5..63bdcbe4558 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -199,8 +199,6 @@ static struct ata_port_operations cs5520_port_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
@@ -294,7 +292,7 @@ static void __devexit cs5520_remove_one(struct pci_dev *pdev)
 	struct device *dev = pci_dev_to_dev(pdev);
 	struct ata_host *host = dev_get_drvdata(dev);
 
-	ata_host_remove(host);
+	ata_host_detach(host);
 	dev_set_drvdata(dev, NULL);
 }
 
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index 611d90f0d3b..29d459be19b 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -216,8 +216,6 @@ static struct ata_port_operations cs5530_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct dmi_system_id palmax_dmi_table[] = {
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c
index e3efec4ffc7..dd3958d2cff 100644
--- a/drivers/ata/pata_cs5535.c
+++ b/drivers/ata/pata_cs5535.c
@@ -220,8 +220,6 @@ static struct ata_port_operations cs5535_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c
index e2a95699bae..8479186a237 100644
--- a/drivers/ata/pata_cypress.c
+++ b/drivers/ata/pata_cypress.c
@@ -171,8 +171,6 @@ static struct ata_port_operations cy82c693_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int cy82c693_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c
index edf8a63f50a..66814ee64d0 100644
--- a/drivers/ata/pata_efar.c
+++ b/drivers/ata/pata_efar.c
@@ -267,8 +267,6 @@ static const struct ata_port_operations efar_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index 2202c7ec16e..8b826102dbd 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -367,8 +367,6 @@ static struct ata_port_operations hpt366_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 9e1eb473c0a..09e8be56ba3 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -802,8 +802,6 @@ static struct ata_port_operations hpt370_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -841,8 +839,6 @@ static struct ata_port_operations hpt370a_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -881,8 +877,6 @@ static struct ata_port_operations hpt372_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -921,8 +915,6 @@ static struct ata_port_operations hpt374_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index 886fab9aa62..9f8ec576317 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -379,8 +379,6 @@ static struct ata_port_operations hpt3x2n_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c
index 5caf167e26d..faa2db44ba7 100644
--- a/drivers/ata/pata_hpt3x3.c
+++ b/drivers/ata/pata_hpt3x3.c
@@ -154,8 +154,6 @@ static struct ata_port_operations hpt3x3_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index a97d55ae95c..38a42eae598 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -59,8 +59,6 @@ static struct ata_port_operations isapnp_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
@@ -120,7 +118,7 @@ static void isapnp_remove_one(struct pnp_dev *idev)
 	struct device *dev = &idev->dev;
 	struct ata_host *host = dev_get_drvdata(dev);
 
-	ata_host_remove(host);
+	ata_host_detach(host);
 	dev_set_drvdata(dev, NULL);
 }
 
diff --git a/drivers/ata/pata_it8213.c b/drivers/ata/pata_it8213.c
index 7e9a41630e5..383a611b662 100644
--- a/drivers/ata/pata_it8213.c
+++ b/drivers/ata/pata_it8213.c
@@ -279,8 +279,6 @@ static const struct ata_port_operations it8213_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 171fbd206bd..f23365b92c0 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -594,14 +594,10 @@ static int it821x_port_start(struct ata_port *ap)
 	if (ret < 0)
 		return ret;
 
-	ap->private_data = kmalloc(sizeof(struct it821x_dev), GFP_KERNEL);
-	if (ap->private_data == NULL) {
-		ata_port_stop(ap);
+	itdev = devm_kzalloc(&pdev->dev, sizeof(struct it821x_dev), GFP_KERNEL);
+	if (itdev == NULL)
 		return -ENOMEM;
-	}
-
-	itdev = ap->private_data;
-	memset(itdev, 0, sizeof(struct it821x_dev));
+	ap->private_data = itdev;
 
 	pci_read_config_byte(pdev, 0x50, &conf);
 
@@ -632,20 +628,6 @@ static int it821x_port_start(struct ata_port *ap)
 	return 0;
 }
 
-/**
- *	it821x_port_stop	-	port shutdown
- *	@ap: ATA port being removed
- *
- *	Release the private objects we added in it821x_port_start
- */
-
-static void it821x_port_stop(struct ata_port *ap) {
-	kfree(ap->private_data);
-	ap->private_data = NULL;	/* We want an OOPS if we reuse this
-					   too late! */
-	ata_port_stop(ap);
-}
-
 static struct scsi_host_template it821x_sht = {
 	.module			= THIS_MODULE,
 	.name			= DRV_NAME,
@@ -698,8 +680,6 @@ static struct ata_port_operations it821x_smart_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= it821x_port_start,
-	.port_stop	= it821x_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations it821x_passthru_port_ops = {
@@ -734,8 +714,6 @@ static struct ata_port_operations it821x_passthru_port_ops = {
 	.irq_handler	= ata_interrupt,
 
 	.port_start	= it821x_port_start,
-	.port_stop	= it821x_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static void __devinit it821x_disable_raid(struct pci_dev *pdev)
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index 23b8aab3ebd..230067d281e 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -95,14 +95,6 @@ static void ixp4xx_irq_clear(struct ata_port *ap)
 {
 }
 
-static void ixp4xx_host_stop (struct ata_host *host)
-{
-	struct ixp4xx_pata_data *data = host->dev->platform_data;
-
-	iounmap(data->cs0);
-	iounmap(data->cs1);
-}
-
 static struct scsi_host_template ixp4xx_sht = {
 	.module			= THIS_MODULE,
 	.name			= DRV_NAME,
@@ -141,8 +133,6 @@ static struct ata_port_operations ixp4xx_port_ops = {
 	.irq_clear	= ixp4xx_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ixp4xx_host_stop,
 
 	.phy_reset	= ixp4xx_phy_reset,
 };
@@ -195,8 +185,8 @@ static __devinit int ixp4xx_pata_probe(struct platform_device *pdev)
 
 	pdev->dev.coherent_dma_mask = DMA_32BIT_MASK;
 
-	data->cs0 = ioremap(cs0->start, 0x1000);
-	data->cs1 = ioremap(cs1->start, 0x1000);
+	data->cs0 = devm_ioremap(&pdev->dev, cs0->start, 0x1000);
+	data->cs1 = devm_ioremap(&pdev->dev, cs1->start, 0x1000);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq)
@@ -238,7 +228,7 @@ static __devexit int ixp4xx_pata_remove(struct platform_device *dev)
 {
 	struct ata_host *host = platform_get_drvdata(dev);
 
-	ata_host_remove(host);
+	ata_host_detach(host);
 	platform_set_drvdata(dev, NULL);
 
 	return 0;
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index aaf6787f534..128a3095821 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -169,8 +169,6 @@ static const struct ata_port_operations jmicron_ops = {
 
 	/* Generic PATA PCI ATA helpers */
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 581cb33c6f4..9532b9bb6d2 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -170,8 +170,6 @@ static struct ata_port_operations simple_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations legacy_port_ops = {
@@ -195,8 +193,6 @@ static struct ata_port_operations legacy_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -305,8 +301,6 @@ static struct ata_port_operations pdc20230_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -357,8 +351,6 @@ static struct ata_port_operations ht6560a_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -420,8 +412,6 @@ static struct ata_port_operations ht6560b_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -538,8 +528,6 @@ static struct ata_port_operations opti82c611a_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /*
@@ -668,8 +656,6 @@ static struct ata_port_operations opti82c46x_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 
@@ -689,21 +675,19 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl
 	struct legacy_data *ld = &legacy_data[nr_legacy_host];
 	struct ata_probe_ent ae;
 	struct platform_device *pdev;
-	int ret = -EBUSY;
 	struct ata_port_operations *ops = &legacy_port_ops;
 	int pio_modes = pio_mask;
 	u32 mask = (1 << port);
-
-	if (request_region(io, 8, "pata_legacy") == NULL)
-		return -EBUSY;
-	if (request_region(ctrl, 1, "pata_legacy") == NULL)
-		goto fail_io;
+	int ret;
 
 	pdev = platform_device_register_simple(DRV_NAME, nr_legacy_host, NULL, 0);
-	if (IS_ERR(pdev)) {
-		ret = PTR_ERR(pdev);
-		goto fail_dev;
-	}
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	ret = -EBUSY;
+	if (devm_request_region(&pdev->dev, io, 8, "pata_legacy") == NULL ||
+	    devm_request_region(&pdev->dev, ctrl, 1, "pata_legacy") == NULL)
+		goto fail;
 
 	if (ht6560a & mask) {
 		ops = &ht6560a_port_ops;
@@ -776,21 +760,16 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl
 	ata_std_ports(&ae.port[0]);
 	ae.private_data = ld;
 
-	ret = ata_device_add(&ae);
-	if (ret == 0) {
-		ret = -ENODEV;
+	ret = -ENODEV;
+	if (!ata_device_add(&ae))
 		goto fail;
-	}
+
 	legacy_host[nr_legacy_host++] = dev_get_drvdata(&pdev->dev);
 	ld->platform_dev = pdev;
 	return 0;
 
 fail:
 	platform_device_unregister(pdev);
-fail_dev:
-	release_region(ctrl, 1);
-fail_io:
-	release_region(io, 8);
 	return ret;
 }
 
@@ -923,15 +902,11 @@ static __exit void legacy_exit(void)
 
 	for (i = 0; i < nr_legacy_host; i++) {
 		struct legacy_data *ld = &legacy_data[i];
-		struct ata_port *ap =legacy_host[i]->ports[0];
-		unsigned long io = ap->ioaddr.cmd_addr;
-		unsigned long ctrl = ap->ioaddr.ctl_addr;
-		ata_host_remove(legacy_host[i]);
+
+		ata_host_detach(legacy_host[i]);
 		platform_device_unregister(ld->platform_dev);
 		if (ld->timing)
 			release_region(ld->timing, 2);
-		release_region(io, 8);
-		release_region(ctrl, 1);
 	}
 }
 
diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c
index af93533551a..0a4409546a0 100644
--- a/drivers/ata/pata_marvell.c
+++ b/drivers/ata/pata_marvell.c
@@ -137,8 +137,6 @@ static const struct ata_port_operations marvell_ops = {
 
 	/* Generic PATA PCI ATA helpers */
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 8b7019a2f19..5320ea85436 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -17,7 +17,6 @@
 #include <linux/delay.h>
 #include <linux/libata.h>
 
-#include <asm/io.h>
 #include <asm/types.h>
 #include <asm/prom.h>
 #include <asm/of_platform.h>
@@ -300,8 +299,6 @@ static struct ata_port_operations mpc52xx_ata_port_ops = {
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static struct ata_probe_ent mpc52xx_ata_probe_ent = {
@@ -353,7 +350,7 @@ mpc52xx_ata_remove_one(struct device *dev)
 	struct ata_host *host = dev_get_drvdata(dev);
 	struct mpc52xx_ata_priv *priv = host->private_data;
 
-	ata_host_remove(host);
+	ata_host_detach(host);
 
 	return priv;
 }
@@ -369,8 +366,8 @@ mpc52xx_ata_probe(struct of_device *op, const struct of_device_id *match)
 	unsigned int ipb_freq;
 	struct resource res_mem;
 	int ata_irq = NO_IRQ;
-	struct mpc52xx_ata __iomem *ata_regs = NULL;
-	struct mpc52xx_ata_priv *priv = NULL;
+	struct mpc52xx_ata __iomem *ata_regs;
+	struct mpc52xx_ata_priv *priv;
 	int rv;
 
 	/* Get ipb frequency */
@@ -397,16 +394,17 @@ mpc52xx_ata_probe(struct of_device *op, const struct of_device_id *match)
 	}
 
 	/* Request mem region */
-	if (!request_mem_region(res_mem.start,
-				sizeof(struct mpc52xx_ata), DRV_NAME)) {
+	if (!devm_request_mem_region(&op->dev, res_mem.start,
+				     sizeof(struct mpc52xx_ata), DRV_NAME)) {
 		printk(KERN_ERR DRV_NAME ": "
 			"Error while requesting mem region\n");
-		irq_dispose_mapping(ata_irq);
-		return -EBUSY;
+		rv = -EBUSY;
+		goto err;
 	}
 
 	/* Remap registers */
-	ata_regs = ioremap(res_mem.start, sizeof(struct mpc52xx_ata));
+	ata_regs = devm_ioremap(&op->dev, res_mem.start,
+				sizeof(struct mpc52xx_ata));
 	if (!ata_regs) {
 		printk(KERN_ERR DRV_NAME ": "
 			"Error while mapping register set\n");
@@ -415,7 +413,8 @@ mpc52xx_ata_probe(struct of_device *op, const struct of_device_id *match)
 	}
 
 	/* Prepare our private structure */
-	priv = kmalloc(sizeof(struct mpc52xx_ata_priv), GFP_ATOMIC);
+	priv = devm_kzalloc(&op->dev, sizeof(struct mpc52xx_ata_priv),
+			    GFP_ATOMIC);
 	if (!priv) {
 		printk(KERN_ERR DRV_NAME ": "
 			"Error while allocating private structure\n");
@@ -448,15 +447,7 @@ mpc52xx_ata_probe(struct of_device *op, const struct of_device_id *match)
 
 	/* Error path */
 err:
-	kfree(priv);
-
-	if (ata_regs)
-		iounmap(ata_regs);
-
-	release_mem_region(res_mem.start, sizeof(struct mpc52xx_ata));
-
 	irq_dispose_mapping(ata_irq);
-
 	return rv;
 }
 
@@ -464,28 +455,10 @@ static int
 mpc52xx_ata_remove(struct of_device *op)
 {
 	struct mpc52xx_ata_priv *priv;
-	struct resource res_mem;
-	int rv;
 
-	/* Unregister */
 	priv = mpc52xx_ata_remove_one(&op->dev);
-
-	/* Free everything */
-	iounmap(priv->ata_regs);
-
-	rv = of_address_to_resource(op->node, 0, &res_mem);
-	if (rv) {
-		printk(KERN_ERR DRV_NAME ": "
-			"Error while parsing device node resource\n");
-		printk(KERN_ERR DRV_NAME ": "
-			"Zone may not be properly released\n");
-	} else
-		release_mem_region(res_mem.start, sizeof(struct mpc52xx_ata));
-
 	irq_dispose_mapping(priv->ata_irq);
 
-	kfree(priv);
-
 	return 0;
 }
 
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c
index 4ccca938675..c4a1b10f3bc 100644
--- a/drivers/ata/pata_mpiix.c
+++ b/drivers/ata/pata_mpiix.c
@@ -194,8 +194,6 @@ static struct ata_port_operations mpiix_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id)
@@ -258,24 +256,6 @@ static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	return -ENODEV;
 }
 
-/**
- *	mpiix_remove_one	-	device unload
- *	@pdev: PCI device being removed
- *
- *	Handle an unplug/unload event for a PCI device. Unload the
- *	PCI driver but do not use the default handler as we *MUST NOT*
- *	disable the device as it has other functions.
- */
-
-static void __devexit mpiix_remove_one(struct pci_dev *pdev)
-{
-	struct device *dev = pci_dev_to_dev(pdev);
-	struct ata_host *host = dev_get_drvdata(dev);
-
-	ata_host_remove(host);
-	dev_set_drvdata(dev, NULL);
-}
-
 static const struct pci_device_id mpiix[] = {
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371MX), },
 
@@ -286,7 +266,7 @@ static struct pci_driver mpiix_pci_driver = {
 	.name 		= DRV_NAME,
 	.id_table	= mpiix,
 	.probe 		= mpiix_init_one,
-	.remove		= mpiix_remove_one,
+	.remove		= ata_pci_remove_one,
 	.suspend	= ata_pci_device_suspend,
 	.resume		= ata_pci_device_resume,
 };
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c
index cf7fe037471..2a2f8df7058 100644
--- a/drivers/ata/pata_netcell.c
+++ b/drivers/ata/pata_netcell.c
@@ -97,8 +97,6 @@ static const struct ata_port_operations netcell_ops = {
 
 	/* Generic PATA PCI ATA helpers */
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c
index c3032eb9010..fdafd92c92a 100644
--- a/drivers/ata/pata_ns87410.c
+++ b/drivers/ata/pata_ns87410.c
@@ -185,8 +185,6 @@ static struct ata_port_operations ns87410_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int ns87410_init_one(struct pci_dev *dev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c
index 10ac3cc1018..df9f7fd4b4e 100644
--- a/drivers/ata/pata_oldpiix.c
+++ b/drivers/ata/pata_oldpiix.c
@@ -265,8 +265,6 @@ static const struct ata_port_operations oldpiix_pata_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_opti.c b/drivers/ata/pata_opti.c
index c2988b0aa8e..58951ccd1e4 100644
--- a/drivers/ata/pata_opti.c
+++ b/drivers/ata/pata_opti.c
@@ -211,8 +211,6 @@ static struct ata_port_operations opti_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int opti_init_one(struct pci_dev *dev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c
index 80d111c569d..74d2e7a28da 100644
--- a/drivers/ata/pata_optidma.c
+++ b/drivers/ata/pata_optidma.c
@@ -395,8 +395,6 @@ static struct ata_port_operations optidma_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations optiplus_port_ops = {
@@ -430,8 +428,6 @@ static struct ata_port_operations optiplus_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index 9ed7f58424a..5a9b24950f9 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -94,8 +94,6 @@ static struct ata_port_operations pcmcia_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 #define CS_CHECK(fn, ret) \
@@ -298,7 +296,7 @@ static void pcmcia_remove_one(struct pcmcia_device *pdev)
 		/* If we have attached the device to the ATA layer, detach it */
 		if (info->ndev) {
 			struct ata_host *host = dev_get_drvdata(dev);
-			ata_host_remove(host);
+			ata_host_detach(host);
 			dev_set_drvdata(dev, NULL);
 		}
 		info->ndev = 0;
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index 76dd1c935db..1c106b866c7 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -33,7 +33,6 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 
 #define DRV_NAME	"pata_pdc2027x"
 #define DRV_VERSION	"0.74-ac5"
@@ -62,7 +61,6 @@ enum {
 };
 
 static int pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
-static void pdc2027x_remove_one(struct pci_dev *pdev);
 static void pdc2027x_error_handler(struct ata_port *ap);
 static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev);
 static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev);
@@ -123,7 +121,7 @@ static struct pci_driver pdc2027x_pci_driver = {
 	.name			= DRV_NAME,
 	.id_table		= pdc2027x_pci_tbl,
 	.probe			= pdc2027x_init_one,
-	.remove			= __devexit_p(pdc2027x_remove_one),
+	.remove			= ata_pci_remove_one,
 };
 
 static struct scsi_host_template pdc2027x_sht = {
@@ -171,8 +169,6 @@ static struct ata_port_operations pdc2027x_pata100_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_pci_host_stop,
 };
 
 static struct ata_port_operations pdc2027x_pata133_ops = {
@@ -205,8 +201,6 @@ static struct ata_port_operations pdc2027x_pata133_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_pci_host_stop,
 };
 
 static struct ata_port_info pdc2027x_port_info[] = {
@@ -755,7 +749,7 @@ static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_de
 	static int printed_version;
 	unsigned int board_idx = (unsigned int) ent->driver_data;
 
-	struct ata_probe_ent *probe_ent = NULL;
+	struct ata_probe_ent *probe_ent;
 	unsigned long base;
 	void __iomem *mmio_base;
 	int rc;
@@ -763,37 +757,33 @@ static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_de
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc)
-		goto err_out;
+		return rc;
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
 	/* Prepare the probe entry */
-	probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
-	mmio_base = pci_iomap(pdev, 5, 0);
-	if (!mmio_base) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, 5, 0);
+	if (!mmio_base)
+		return -ENOMEM;
 
 	base = (unsigned long) mmio_base;
 
@@ -820,32 +810,13 @@ static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_de
 
 	/* initialize adapter */
 	if (pdc_hardware_init(pdev, probe_ent, board_idx) != 0)
-		goto err_out_free_ent;
+		return -EIO;
 
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
-
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	pci_disable_device(pdev);
-	return rc;
-}
-
-/**
- * pdc2027x_remove_one - Called to remove a single instance of the
- * adapter.
- *
- * @dev: The PCI device to remove.
- * FIXME: module load/unload not working yet
- */
-static void __devexit pdc2027x_remove_one(struct pci_dev *pdev)
-{
-	ata_pci_remove_one(pdev);
 }
 
 /**
diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index ba982ba68ad..c52e1e8aa2d 100644
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -300,8 +300,6 @@ static struct ata_port_operations pdc2024x_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations pdc2026x_port_ops = {
@@ -334,8 +332,6 @@ static struct ata_port_operations pdc2026x_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
index afc0d990e7d..4413960042a 100644
--- a/drivers/ata/pata_qdi.c
+++ b/drivers/ata/pata_qdi.c
@@ -191,8 +191,6 @@ static struct ata_port_operations qdi6500_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations qdi6580_port_ops = {
@@ -219,8 +217,6 @@ static struct ata_port_operations qdi6580_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
@@ -382,7 +378,7 @@ static __exit void qdi_exit(void)
 	int i;
 
 	for (i = 0; i < nr_qdi_host; i++) {
-		ata_host_remove(qdi_host[i]);
+		ata_host_detach(qdi_host[i]);
 		/* Free the control resource. The 6580 dual channel has the resources
 		 * claimed as a pair of 2 byte resources so we need no special cases...
 		 */
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 065541d034a..ca9c97056c1 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -261,8 +261,6 @@ static const struct ata_port_operations radisys_pata_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c
index cec0729225e..c99331bbbdd 100644
--- a/drivers/ata/pata_rz1000.c
+++ b/drivers/ata/pata_rz1000.c
@@ -126,8 +126,6 @@ static struct ata_port_operations rz1000_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int rz1000_fifo_disable(struct pci_dev *pdev)
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c
index a3b35bc5039..75638ccc018 100644
--- a/drivers/ata/pata_sc1200.c
+++ b/drivers/ata/pata_sc1200.c
@@ -226,8 +226,6 @@ static struct ata_port_operations sc1200_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 4b8c2352cdc..46ea1e8af4f 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -354,8 +354,6 @@ static struct ata_port_operations serverworks_osb4_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations serverworks_csb_port_ops = {
@@ -389,8 +387,6 @@ static struct ata_port_operations serverworks_csb_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int serverworks_fixup_osb4(struct pci_dev *pdev)
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index 11da1f5271d..955c1d3a573 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -258,8 +258,6 @@ static struct ata_port_operations sil680_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index 5e616d3cc87..1c5219f3ffd 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -608,8 +608,6 @@ static const struct ata_port_operations sis_133_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static const struct ata_port_operations sis_133_early_ops = {
@@ -641,8 +639,6 @@ static const struct ata_port_operations sis_133_early_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static const struct ata_port_operations sis_100_ops = {
@@ -675,8 +671,6 @@ static const struct ata_port_operations sis_100_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static const struct ata_port_operations sis_66_ops = {
@@ -708,8 +702,6 @@ static const struct ata_port_operations sis_66_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static const struct ata_port_operations sis_old_ops = {
@@ -741,8 +733,6 @@ static const struct ata_port_operations sis_old_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info sis_info = {
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index e94f515ef54..d118a1822c4 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -268,8 +268,6 @@ static struct ata_port_operations sl82c105_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c
index a142971f130..57385a2f828 100644
--- a/drivers/ata/pata_triflex.c
+++ b/drivers/ata/pata_triflex.c
@@ -227,8 +227,6 @@ static struct ata_port_operations triflex_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static int triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id)
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 2addce11000..2b262363b96 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -340,8 +340,6 @@ static struct ata_port_operations via_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 static struct ata_port_operations via_port_ops_noirq = {
@@ -375,8 +373,6 @@ static struct ata_port_operations via_port_ops_noirq = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
diff --git a/drivers/ata/pata_winbond.c b/drivers/ata/pata_winbond.c
index 022da95a338..bba04a6e370 100644
--- a/drivers/ata/pata_winbond.c
+++ b/drivers/ata/pata_winbond.c
@@ -160,8 +160,6 @@ static struct ata_port_operations winbond_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 
 	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
 };
 
 /**
@@ -288,7 +286,7 @@ static __exit void winbond_exit(void)
 	int i;
 
 	for (i = 0; i < nr_winbond_host; i++) {
-		ata_host_remove(winbond_host[i]);
+		ata_host_detach(winbond_host[i]);
 		release_region(winbond_data[i].config, 2);
 		platform_device_unregister(winbond_data[i].platform_dev);
 	}
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index 90786d7a20b..a6bf7cbdfdc 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -42,7 +42,6 @@
 #include <linux/sched.h>
 #include <linux/device.h>
 #include <scsi/scsi_host.h>
-#include <asm/io.h>
 #include <linux/libata.h>
 
 #define DRV_NAME	"pdc_adma"
@@ -550,48 +549,28 @@ static int adma_port_start(struct ata_port *ap)
 	if (rc)
 		return rc;
 	adma_enter_reg_mode(ap);
-	rc = -ENOMEM;
-	pp = kzalloc(sizeof(*pp), GFP_KERNEL);
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
 	if (!pp)
-		goto err_out;
-	pp->pkt = dma_alloc_coherent(dev, ADMA_PKT_BYTES, &pp->pkt_dma,
-								GFP_KERNEL);
+		return -ENOMEM;
+	pp->pkt = dmam_alloc_coherent(dev, ADMA_PKT_BYTES, &pp->pkt_dma,
+				      GFP_KERNEL);
 	if (!pp->pkt)
-		goto err_out_kfree;
+		return -ENOMEM;
 	/* paranoia? */
 	if ((pp->pkt_dma & 7) != 0) {
 		printk("bad alignment for pp->pkt_dma: %08x\n",
 						(u32)pp->pkt_dma);
-		dma_free_coherent(dev, ADMA_PKT_BYTES,
-						pp->pkt, pp->pkt_dma);
-		goto err_out_kfree;
+		return -ENOMEM;
 	}
 	memset(pp->pkt, 0, ADMA_PKT_BYTES);
 	ap->private_data = pp;
 	adma_reinit_engine(ap);
 	return 0;
-
-err_out_kfree:
-	kfree(pp);
-err_out:
-	ata_port_stop(ap);
-	return rc;
 }
 
 static void adma_port_stop(struct ata_port *ap)
 {
-	struct device *dev = ap->host->dev;
-	struct adma_port_priv *pp = ap->private_data;
-
 	adma_reset_engine(ADMA_REGS(ap->host->mmio_base, ap->port_no));
-	if (pp != NULL) {
-		ap->private_data = NULL;
-		if (pp->pkt != NULL)
-			dma_free_coherent(dev, ADMA_PKT_BYTES,
-					pp->pkt, pp->pkt_dma);
-		kfree(pp);
-	}
-	ata_port_stop(ap);
 }
 
 static void adma_host_stop(struct ata_host *host)
@@ -600,8 +579,6 @@ static void adma_host_stop(struct ata_host *host)
 
 	for (port_no = 0; port_no < ADMA_PORTS; ++port_no)
 		adma_reset_engine(ADMA_REGS(host->mmio_base, port_no));
-
-	ata_pci_host_stop(host);
 }
 
 static void adma_host_init(unsigned int chip_id,
@@ -649,34 +626,28 @@ static int adma_ata_init_one(struct pci_dev *pdev,
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc)
-		goto err_out;
+		return rc;
 
-	if ((pci_resource_flags(pdev, 4) & IORESOURCE_MEM) == 0) {
-		rc = -ENODEV;
-		goto err_out_regions;
-	}
+	if ((pci_resource_flags(pdev, 4) & IORESOURCE_MEM) == 0)
+		return -ENODEV;
 
-	mmio_base = pci_iomap(pdev, 4, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	mmio_base = pcim_iomap(pdev, 4, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 
 	rc = adma_set_dma_masks(pdev, mmio_base);
 	if (rc)
-		goto err_out_iounmap;
+		return rc;
 
-	probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_iounmap;
-	}
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
@@ -703,19 +674,11 @@ static int adma_ata_init_one(struct pci_dev *pdev,
 	/* initialize adapter */
 	adma_host_init(board_idx, probe_ent);
 
-	rc = ata_device_add(probe_ent);
-	kfree(probe_ent);
-	if (rc != ADMA_PORTS)
-		goto err_out_iounmap;
-	return 0;
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
-err_out_iounmap:
-	pci_iounmap(pdev, mmio_base);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	pci_disable_device(pdev);
-	return rc;
+	devm_kfree(&pdev->dev, probe_ent);
+	return 0;
 }
 
 static int __init adma_ata_init(void)
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index b67817e440c..c98e0227a60 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -523,7 +523,7 @@ static int inic_port_start(struct ata_port *ap)
 	int rc;
 
 	/* alloc and initialize private data */
-	pp = kzalloc(sizeof(*pp), GFP_KERNEL);
+	pp = devm_kzalloc(ap->host->dev, sizeof(*pp), GFP_KERNEL);
 	if (!pp)
 		return -ENOMEM;
 	ap->private_data = pp;
@@ -545,12 +545,6 @@ static int inic_port_start(struct ata_port *ap)
 	return 0;
 }
 
-static void inic_port_stop(struct ata_port *ap)
-{
-	ata_port_stop(ap);
-	kfree(ap->private_data);
-}
-
 static struct ata_port_operations inic_port_ops = {
 	.port_disable		= ata_port_disable,
 	.tf_load		= ata_tf_load,
@@ -583,8 +577,6 @@ static struct ata_port_operations inic_port_ops = {
 	.port_resume		= inic_port_resume,
 
 	.port_start		= inic_port_start,
-	.port_stop		= inic_port_stop,
-	.host_stop		= ata_pci_host_stop
 };
 
 static struct ata_port_info inic_port_info = {
@@ -675,42 +667,37 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc)
-		goto err_out;
+		return rc;
 
-	rc = -ENOMEM;
 	mmio_base = pci_iomap(pdev, MMIO_BAR, 0);
 	if (!mmio_base)
-		goto err_out_regions;
+		return -ENOMEM;
 
 	/* Set dma_mask.  This devices doesn't support 64bit addressing. */
 	rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 	if (rc) {
 		dev_printk(KERN_ERR, &pdev->dev,
 			   "32-bit DMA enable failed\n");
-		goto err_out_map;
+		return rc;
 	}
 
 	rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
 	if (rc) {
 		dev_printk(KERN_ERR, &pdev->dev,
 			   "32-bit consistent DMA enable failed\n");
-		goto err_out_map;
+		return rc;
 	}
 
-	rc = -ENOMEM;
-	probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (!probe_ent)
-		goto err_out_map;
-
-	hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv)
-		goto err_out_ent;
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
+	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!probe_ent || !hpriv)
+		return -ENOMEM;
 
 	probe_ent->dev = &pdev->dev;
 	INIT_LIST_HEAD(&probe_ent->node);
@@ -749,30 +736,17 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (rc) {
 		dev_printk(KERN_ERR, &pdev->dev,
 			   "failed to initialize controller\n");
-		goto err_out_hpriv;
+		return rc;
 	}
 
 	pci_set_master(pdev);
 
-	rc = -ENODEV;
 	if (!ata_device_add(probe_ent))
-		goto err_out_hpriv;
+		return -ENODEV;
 
-	kfree(probe_ent);
+	devm_kfree(&pdev->dev, probe_ent);
 
 	return 0;
-
- err_out_hpriv:
-	kfree(hpriv);
- err_out_ent:
-	kfree(probe_ent);
- err_out_map:
-	pci_iounmap(pdev, mmio_base);
- err_out_regions:
-	pci_release_regions(pdev);
- err_out:
-	pci_disable_device(pdev);
-	return rc;
 }
 
 static const struct pci_device_id inic_pci_tbl[] = {
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index aae0b5201c1..c073e453dcd 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -34,7 +34,6 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 
 #define DRV_NAME	"sata_mv"
 #define DRV_VERSION	"0.7"
@@ -342,7 +341,6 @@ static u32 mv5_scr_read(struct ata_port *ap, unsigned int sc_reg_in);
 static void mv5_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val);
 static void mv_phy_reset(struct ata_port *ap);
 static void __mv_phy_reset(struct ata_port *ap, int can_sleep);
-static void mv_host_stop(struct ata_host *host);
 static int mv_port_start(struct ata_port *ap);
 static void mv_port_stop(struct ata_port *ap);
 static void mv_qc_prep(struct ata_queued_cmd *qc);
@@ -418,7 +416,6 @@ static const struct ata_port_operations mv5_ops = {
 
 	.port_start		= mv_port_start,
 	.port_stop		= mv_port_stop,
-	.host_stop		= mv_host_stop,
 };
 
 static const struct ata_port_operations mv6_ops = {
@@ -446,7 +443,6 @@ static const struct ata_port_operations mv6_ops = {
 
 	.port_start		= mv_port_start,
 	.port_stop		= mv_port_stop,
-	.host_stop		= mv_host_stop,
 };
 
 static const struct ata_port_operations mv_iie_ops = {
@@ -474,7 +470,6 @@ static const struct ata_port_operations mv_iie_ops = {
 
 	.port_start		= mv_port_start,
 	.port_stop		= mv_port_stop,
-	.host_stop		= mv_host_stop,
 };
 
 static const struct ata_port_info mv_port_info[] = {
@@ -809,35 +804,6 @@ static void mv_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val)
 	}
 }
 
-/**
- *      mv_host_stop - Host specific cleanup/stop routine.
- *      @host: host data structure
- *
- *      Disable ints, cleanup host memory, call general purpose
- *      host_stop.
- *
- *      LOCKING:
- *      Inherited from caller.
- */
-static void mv_host_stop(struct ata_host *host)
-{
-	struct mv_host_priv *hpriv = host->private_data;
-	struct pci_dev *pdev = to_pci_dev(host->dev);
-
-	if (hpriv->hp_flags & MV_HP_FLAG_MSI) {
-		pci_disable_msi(pdev);
-	} else {
-		pci_intx(pdev, 0);
-	}
-	kfree(hpriv);
-	ata_host_stop(host);
-}
-
-static inline void mv_priv_free(struct mv_port_priv *pp, struct device *dev)
-{
-	dma_free_coherent(dev, MV_PORT_PRIV_DMA_SZ, pp->crpb, pp->crpb_dma);
-}
-
 static void mv_edma_cfg(struct mv_host_priv *hpriv, void __iomem *port_mmio)
 {
 	u32 cfg = readl(port_mmio + EDMA_CFG_OFS);
@@ -883,22 +849,21 @@ static int mv_port_start(struct ata_port *ap)
 	void __iomem *port_mmio = mv_ap_base(ap);
 	void *mem;
 	dma_addr_t mem_dma;
-	int rc = -ENOMEM;
+	int rc;
 
-	pp = kmalloc(sizeof(*pp), GFP_KERNEL);
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
 	if (!pp)
-		goto err_out;
-	memset(pp, 0, sizeof(*pp));
+		return -ENOMEM;
 
-	mem = dma_alloc_coherent(dev, MV_PORT_PRIV_DMA_SZ, &mem_dma,
-				 GFP_KERNEL);
+	mem = dmam_alloc_coherent(dev, MV_PORT_PRIV_DMA_SZ, &mem_dma,
+				  GFP_KERNEL);
 	if (!mem)
-		goto err_out_pp;
+		return -ENOMEM;
 	memset(mem, 0, MV_PORT_PRIV_DMA_SZ);
 
 	rc = ata_pad_alloc(ap, dev);
 	if (rc)
-		goto err_out_priv;
+		return rc;
 
 	/* First item in chunk of DMA memory:
 	 * 32-slot command request table (CRQB), 32 bytes each in size
@@ -951,13 +916,6 @@ static int mv_port_start(struct ata_port *ap)
 	 */
 	ap->private_data = pp;
 	return 0;
-
-err_out_priv:
-	mv_priv_free(pp, dev);
-err_out_pp:
-	kfree(pp);
-err_out:
-	return rc;
 }
 
 /**
@@ -971,18 +929,11 @@ err_out:
  */
 static void mv_port_stop(struct ata_port *ap)
 {
-	struct device *dev = ap->host->dev;
-	struct mv_port_priv *pp = ap->private_data;
 	unsigned long flags;
 
 	spin_lock_irqsave(&ap->host->lock, flags);
 	mv_stop_dma(ap);
 	spin_unlock_irqrestore(&ap->host->lock, flags);
-
-	ap->private_data = NULL;
-	ata_pad_free(ap, dev);
-	mv_priv_free(pp, dev);
-	kfree(pp);
 }
 
 /**
@@ -2342,49 +2293,41 @@ static void mv_print_info(struct ata_probe_ent *probe_ent)
 static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version = 0;
-	struct ata_probe_ent *probe_ent = NULL;
+	struct device *dev = &pdev->dev;
+	struct ata_probe_ent *probe_ent;
 	struct mv_host_priv *hpriv;
 	unsigned int board_idx = (unsigned int)ent->driver_data;
 	void __iomem *mmio_base;
-	int pci_dev_busy = 0, rc;
+	int rc;
 
 	if (!printed_version++)
 		dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
-	if (rc) {
+	rc = pcim_enable_device(pdev);
+	if (rc)
 		return rc;
-	}
 	pci_set_master(pdev);
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
-	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
-	memset(probe_ent, 0, sizeof(*probe_ent));
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
-	mmio_base = pci_iomap(pdev, MV_PRIMARY_BAR, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, MV_PRIMARY_BAR, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 
-	hpriv = kmalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv) {
-		rc = -ENOMEM;
-		goto err_out_iounmap;
-	}
-	memset(hpriv, 0, sizeof(*hpriv));
+	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!hpriv)
+		return -ENOMEM;
 
 	probe_ent->sht = mv_port_info[board_idx].sht;
 	probe_ent->port_flags = mv_port_info[board_idx].flags;
@@ -2399,48 +2342,21 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	/* initialize adapter */
 	rc = mv_init_host(pdev, probe_ent, board_idx);
-	if (rc) {
-		goto err_out_hpriv;
-	}
+	if (rc)
+		return rc;
 
 	/* Enable interrupts */
-	if (msi && pci_enable_msi(pdev) == 0) {
-		hpriv->hp_flags |= MV_HP_FLAG_MSI;
-	} else {
+	if (msi && !pci_enable_msi(pdev))
 		pci_intx(pdev, 1);
-	}
 
 	mv_dump_pci_cfg(pdev, 0x68);
 	mv_print_info(probe_ent);
 
-	if (ata_device_add(probe_ent) == 0) {
-		rc = -ENODEV;		/* No devices discovered */
-		goto err_out_dev_add;
-	}
+	if (ata_device_add(probe_ent) == 0)
+		return -ENODEV;
 
-	kfree(probe_ent);
+	devm_kfree(dev, probe_ent);
 	return 0;
-
-err_out_dev_add:
-	if (MV_HP_FLAG_MSI & hpriv->hp_flags) {
-		pci_disable_msi(pdev);
-	} else {
-		pci_intx(pdev, 0);
-	}
-err_out_hpriv:
-	kfree(hpriv);
-err_out_iounmap:
-	pci_iounmap(pdev, mmio_base);
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy) {
-		pci_disable_device(pdev);
-	}
-
-	return rc;
 }
 
 static int __init mv_init(void)
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 246df22ecd0..18361a38aee 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -363,8 +363,6 @@ static const struct ata_port_operations nv_generic_ops = {
 	.scr_read		= nv_scr_read,
 	.scr_write		= nv_scr_write,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_pci_host_stop,
 };
 
 static const struct ata_port_operations nv_nf2_ops = {
@@ -390,8 +388,6 @@ static const struct ata_port_operations nv_nf2_ops = {
 	.scr_read		= nv_scr_read,
 	.scr_write		= nv_scr_write,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_pci_host_stop,
 };
 
 static const struct ata_port_operations nv_ck804_ops = {
@@ -417,7 +413,6 @@ static const struct ata_port_operations nv_ck804_ops = {
 	.scr_read		= nv_scr_read,
 	.scr_write		= nv_scr_write,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
 	.host_stop		= nv_ck804_host_stop,
 };
 
@@ -928,11 +923,9 @@ static int nv_adma_port_start(struct ata_port *ap)
 	if (rc)
 		return rc;
 
-	pp = kzalloc(sizeof(*pp), GFP_KERNEL);
-	if (!pp) {
-		rc = -ENOMEM;
-		goto err_out;
-	}
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
+	if (!pp)
+		return -ENOMEM;
 
 	mmio = ap->host->mmio_base + NV_ADMA_PORT +
 	       ap->port_no * NV_ADMA_PORT_SIZE;
@@ -941,13 +934,10 @@ static int nv_adma_port_start(struct ata_port *ap)
 	pp->notifier_clear_block = pp->gen_block +
 	       NV_ADMA_NOTIFIER_CLEAR + (4 * ap->port_no);
 
-	mem = dma_alloc_coherent(dev, NV_ADMA_PORT_PRIV_DMA_SZ,
-				 &mem_dma, GFP_KERNEL);
-
-	if (!mem) {
-		rc = -ENOMEM;
-		goto err_out_kfree;
-	}
+	mem = dmam_alloc_coherent(dev, NV_ADMA_PORT_PRIV_DMA_SZ,
+				  &mem_dma, GFP_KERNEL);
+	if (!mem)
+		return -ENOMEM;
 	memset(mem, 0, NV_ADMA_PORT_PRIV_DMA_SZ);
 
 	/*
@@ -993,28 +983,15 @@ static int nv_adma_port_start(struct ata_port *ap)
 	readl( mmio + NV_ADMA_CTL );	/* flush posted write */
 
 	return 0;
-
-err_out_kfree:
-	kfree(pp);
-err_out:
-	ata_port_stop(ap);
-	return rc;
 }
 
 static void nv_adma_port_stop(struct ata_port *ap)
 {
-	struct device *dev = ap->host->dev;
 	struct nv_adma_port_priv *pp = ap->private_data;
 	void __iomem *mmio = pp->ctl_block;
 
 	VPRINTK("ENTER\n");
-
 	writew(0, mmio + NV_ADMA_CTL);
-
-	ap->private_data = NULL;
-	dma_free_coherent(dev, NV_ADMA_PORT_PRIV_DMA_SZ, pp->cpb, pp->cpb_dma);
-	kfree(pp);
-	ata_port_stop(ap);
 }
 
 static int nv_adma_port_suspend(struct ata_port *ap, pm_message_t mesg)
@@ -1433,7 +1410,6 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct ata_port_info *ppi[2];
 	struct ata_probe_ent *probe_ent;
 	struct nv_host_priv *hpriv;
-	int pci_dev_busy = 0;
 	int rc;
 	u32 bar;
 	unsigned long base;
@@ -1450,14 +1426,14 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
-		goto err_out;
+		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out_disable;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	if(type >= CK804 && adma_enabled) {
@@ -1471,28 +1447,27 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	if(!mask_set) {
 		rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 		if (rc)
-			goto err_out_regions;
+			return rc;
 		rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 		if (rc)
-			goto err_out_regions;
+			return rc;
 	}
 
 	rc = -ENOMEM;
 
-	hpriv = kmalloc(sizeof(*hpriv), GFP_KERNEL);
+	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
 	if (!hpriv)
-		goto err_out_regions;
+		return -ENOMEM;
 
 	ppi[0] = ppi[1] = &nv_port_info[type];
 	probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
 	if (!probe_ent)
-		goto err_out_regions;
+		return -ENOMEM;
+
+	probe_ent->mmio_base = pcim_iomap(pdev, 5, 0);
+	if (!probe_ent->mmio_base)
+		return -EIO;
 
-	probe_ent->mmio_base = pci_iomap(pdev, 5, 0);
-	if (!probe_ent->mmio_base) {
-		rc = -EIO;
-		goto err_out_free_ent;
-	}
 	probe_ent->private_data = hpriv;
 	hpriv->type = type;
 
@@ -1515,28 +1490,15 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (type == ADMA) {
 		rc = nv_adma_host_init(probe_ent);
 		if (rc)
-			goto err_out_iounmap;
+			return rc;
 	}
 
 	rc = ata_device_add(probe_ent);
 	if (rc != NV_PORTS)
-		goto err_out_iounmap;
-
-	kfree(probe_ent);
+		return -ENODEV;
 
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
-
-err_out_iounmap:
-	pci_iounmap(pdev, probe_ent->mmio_base);
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out_disable:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-err_out:
-	return rc;
 }
 
 static void nv_remove_one (struct pci_dev *pdev)
@@ -1602,8 +1564,6 @@ static void nv_ck804_host_stop(struct ata_host *host)
 	pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, &regval);
 	regval &= ~NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
 	pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
-
-	ata_pci_host_stop(host);
 }
 
 static void nv_adma_host_stop(struct ata_host *host)
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 32ae03e9081..e09c609d496 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -43,7 +43,6 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 #include "sata_promise.h"
 
 #define DRV_NAME	"sata_promise"
@@ -121,7 +120,6 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 static irqreturn_t pdc_interrupt (int irq, void *dev_instance);
 static void pdc_eng_timeout(struct ata_port *ap);
 static int pdc_port_start(struct ata_port *ap);
-static void pdc_port_stop(struct ata_port *ap);
 static void pdc_pata_phy_reset(struct ata_port *ap);
 static void pdc_qc_prep(struct ata_queued_cmd *qc);
 static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
@@ -130,7 +128,6 @@ static int pdc_check_atapi_dma(struct ata_queued_cmd *qc);
 static int pdc_old_check_atapi_dma(struct ata_queued_cmd *qc);
 static void pdc_irq_clear(struct ata_port *ap);
 static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
-static void pdc_host_stop(struct ata_host *host);
 static void pdc_freeze(struct ata_port *ap);
 static void pdc_thaw(struct ata_port *ap);
 static void pdc_error_handler(struct ata_port *ap);
@@ -177,8 +174,6 @@ static const struct ata_port_operations pdc_sata_ops = {
 	.scr_read		= pdc_sata_scr_read,
 	.scr_write		= pdc_sata_scr_write,
 	.port_start		= pdc_port_start,
-	.port_stop		= pdc_port_stop,
-	.host_stop		= pdc_host_stop,
 };
 
 /* First-generation chips need a more restrictive ->check_atapi_dma op */
@@ -204,8 +199,6 @@ static const struct ata_port_operations pdc_old_sata_ops = {
 	.scr_read		= pdc_sata_scr_read,
 	.scr_write		= pdc_sata_scr_write,
 	.port_start		= pdc_port_start,
-	.port_stop		= pdc_port_stop,
-	.host_stop		= pdc_host_stop,
 };
 
 static const struct ata_port_operations pdc_pata_ops = {
@@ -227,8 +220,6 @@ static const struct ata_port_operations pdc_pata_ops = {
 	.irq_clear		= pdc_irq_clear,
 
 	.port_start		= pdc_port_start,
-	.port_stop		= pdc_port_stop,
-	.host_stop		= pdc_host_stop,
 };
 
 static const struct ata_port_info pdc_port_info[] = {
@@ -332,17 +323,13 @@ static int pdc_port_start(struct ata_port *ap)
 	if (rc)
 		return rc;
 
-	pp = kzalloc(sizeof(*pp), GFP_KERNEL);
-	if (!pp) {
-		rc = -ENOMEM;
-		goto err_out;
-	}
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
+	if (!pp)
+		return -ENOMEM;
 
-	pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL);
-	if (!pp->pkt) {
-		rc = -ENOMEM;
-		goto err_out_kfree;
-	}
+	pp->pkt = dmam_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL);
+	if (!pp->pkt)
+		return -ENOMEM;
 
 	ap->private_data = pp;
 
@@ -357,37 +344,8 @@ static int pdc_port_start(struct ata_port *ap)
 	}
 
 	return 0;
-
-err_out_kfree:
-	kfree(pp);
-err_out:
-	ata_port_stop(ap);
-	return rc;
 }
 
-
-static void pdc_port_stop(struct ata_port *ap)
-{
-	struct device *dev = ap->host->dev;
-	struct pdc_port_priv *pp = ap->private_data;
-
-	ap->private_data = NULL;
-	dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma);
-	kfree(pp);
-	ata_port_stop(ap);
-}
-
-
-static void pdc_host_stop(struct ata_host *host)
-{
-	struct pdc_host_priv *hp = host->private_data;
-
-	ata_pci_host_stop(host);
-
-	kfree(hp);
-}
-
-
 static void pdc_reset_port(struct ata_port *ap)
 {
 	void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT;
@@ -924,56 +882,49 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
 static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
-	struct ata_probe_ent *probe_ent = NULL;
+	struct ata_probe_ent *probe_ent;
 	struct pdc_host_priv *hp;
 	unsigned long base;
 	void __iomem *mmio_base;
 	unsigned int board_idx = (unsigned int) ent->driver_data;
-	int pci_dev_busy = 0;
 	int rc;
 	u8 tmp;
 
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
-	probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
-	mmio_base = pci_iomap(pdev, 3, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, 3, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 	base = (unsigned long) mmio_base;
 
-	hp = kzalloc(sizeof(*hp), GFP_KERNEL);
-	if (hp == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	hp = devm_kzalloc(&pdev->dev, sizeof(*hp), GFP_KERNEL);
+	if (hp == NULL)
+		return -ENOMEM;
 
 	probe_ent->private_data = hp;
 
@@ -1043,22 +994,11 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 	/* initialize adapter */
 	pdc_host_init(board_idx, probe_ent);
 
-	/* FIXME: Need any other frees than hp? */
 	if (!ata_device_add(probe_ent))
-		kfree(hp);
-
-	kfree(probe_ent);
+		return -ENODEV;
 
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
-
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
 }
 
 
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c
index 0292a79f974..339f61648af 100644
--- a/drivers/ata/sata_qstor.c
+++ b/drivers/ata/sata_qstor.c
@@ -37,7 +37,6 @@
 #include <linux/sched.h>
 #include <linux/device.h>
 #include <scsi/scsi_host.h>
-#include <asm/io.h>
 #include <linux/libata.h>
 
 #define DRV_NAME	"sata_qstor"
@@ -117,7 +116,6 @@ static int qs_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *en
 static irqreturn_t qs_intr (int irq, void *dev_instance);
 static int qs_port_start(struct ata_port *ap);
 static void qs_host_stop(struct ata_host *host);
-static void qs_port_stop(struct ata_port *ap);
 static void qs_phy_reset(struct ata_port *ap);
 static void qs_qc_prep(struct ata_queued_cmd *qc);
 static unsigned int qs_qc_issue(struct ata_queued_cmd *qc);
@@ -164,7 +162,6 @@ static const struct ata_port_operations qs_ata_ops = {
 	.scr_read		= qs_scr_read,
 	.scr_write		= qs_scr_write,
 	.port_start		= qs_port_start,
-	.port_stop		= qs_port_stop,
 	.host_stop		= qs_host_stop,
 	.bmdma_stop		= qs_bmdma_stop,
 	.bmdma_status		= qs_bmdma_status,
@@ -501,17 +498,13 @@ static int qs_port_start(struct ata_port *ap)
 	if (rc)
 		return rc;
 	qs_enter_reg_mode(ap);
-	pp = kzalloc(sizeof(*pp), GFP_KERNEL);
-	if (!pp) {
-		rc = -ENOMEM;
-		goto err_out;
-	}
-	pp->pkt = dma_alloc_coherent(dev, QS_PKT_BYTES, &pp->pkt_dma,
-								GFP_KERNEL);
-	if (!pp->pkt) {
-		rc = -ENOMEM;
-		goto err_out_kfree;
-	}
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
+	if (!pp)
+		return -ENOMEM;
+	pp->pkt = dmam_alloc_coherent(dev, QS_PKT_BYTES, &pp->pkt_dma,
+				      GFP_KERNEL);
+	if (!pp->pkt)
+		return -ENOMEM;
 	memset(pp->pkt, 0, QS_PKT_BYTES);
 	ap->private_data = pp;
 
@@ -519,38 +512,14 @@ static int qs_port_start(struct ata_port *ap)
 	writel((u32) addr,        chan + QS_CCF_CPBA);
 	writel((u32)(addr >> 32), chan + QS_CCF_CPBA + 4);
 	return 0;
-
-err_out_kfree:
-	kfree(pp);
-err_out:
-	ata_port_stop(ap);
-	return rc;
-}
-
-static void qs_port_stop(struct ata_port *ap)
-{
-	struct device *dev = ap->host->dev;
-	struct qs_port_priv *pp = ap->private_data;
-
-	if (pp != NULL) {
-		ap->private_data = NULL;
-		if (pp->pkt != NULL)
-			dma_free_coherent(dev, QS_PKT_BYTES, pp->pkt,
-								pp->pkt_dma);
-		kfree(pp);
-	}
-	ata_port_stop(ap);
 }
 
 static void qs_host_stop(struct ata_host *host)
 {
 	void __iomem *mmio_base = host->mmio_base;
-	struct pci_dev *pdev = to_pci_dev(host->dev);
 
 	writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */
 	writeb(QS_CNFG3_GSRST, mmio_base + QS_HCF_CNFG3); /* global reset */
-
-	pci_iounmap(pdev, mmio_base);
 }
 
 static void qs_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
@@ -638,36 +607,29 @@ static int qs_ata_init_one(struct pci_dev *pdev,
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc)
-		goto err_out;
+		return rc;
 
-	if ((pci_resource_flags(pdev, 4) & IORESOURCE_MEM) == 0) {
-		rc = -ENODEV;
-		goto err_out_regions;
-	}
+	if ((pci_resource_flags(pdev, 4) & IORESOURCE_MEM) == 0)
+		return -ENODEV;
 
-	mmio_base = pci_iomap(pdev, 4, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	mmio_base = pcim_iomap(pdev, 4, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 
 	rc = qs_set_dma_masks(pdev, mmio_base);
 	if (rc)
-		goto err_out_iounmap;
+		return rc;
 
-	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_iounmap;
-	}
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
-	memset(probe_ent, 0, sizeof(*probe_ent));
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
@@ -694,19 +656,11 @@ static int qs_ata_init_one(struct pci_dev *pdev,
 	/* initialize adapter */
 	qs_host_init(board_idx, probe_ent);
 
-	rc = ata_device_add(probe_ent);
-	kfree(probe_ent);
-	if (rc != QS_PORTS)
-		goto err_out_iounmap;
-	return 0;
+	if (ata_device_add(probe_ent) != QS_PORTS)
+		return -EIO;
 
-err_out_iounmap:
-	pci_iounmap(pdev, mmio_base);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	pci_disable_device(pdev);
-	return rc;
+	devm_kfree(&pdev->dev, probe_ent);
+	return 0;
 }
 
 static int __init qs_ata_init(void)
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 1f3fdcf2987..00f2465dcdc 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -210,8 +210,6 @@ static const struct ata_port_operations sil_ops = {
 	.scr_read		= sil_scr_read,
 	.scr_write		= sil_scr_write,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_pci_host_stop,
 };
 
 static const struct ata_port_info sil_port_info[] = {
@@ -621,38 +619,36 @@ static void sil_init_controller(struct pci_dev *pdev,
 static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
-	struct ata_probe_ent *probe_ent = NULL;
+	struct device *dev = &pdev->dev;
+	struct ata_probe_ent *probe_ent;
 	unsigned long base;
 	void __iomem *mmio_base;
 	int rc;
 	unsigned int i;
-	int pci_dev_busy = 0;
 
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
-	probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
 	INIT_LIST_HEAD(&probe_ent->node);
 	probe_ent->dev = pci_dev_to_dev(pdev);
@@ -666,11 +662,9 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
        	probe_ent->irq_flags = IRQF_SHARED;
 	probe_ent->port_flags = sil_port_info[ent->driver_data].flags;
 
-	mmio_base = pci_iomap(pdev, 5, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, 5, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 
 	probe_ent->mmio_base = mmio_base;
 
@@ -690,20 +684,11 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_set_master(pdev);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
+	devm_kfree(dev, probe_ent);
 	return 0;
-
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index da982ed4bc4..c7a3c0275be 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -28,7 +28,6 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 
 #define DRV_NAME	"sata_sil24"
 #define DRV_VERSION	"0.3"
@@ -341,8 +340,6 @@ static void sil24_thaw(struct ata_port *ap);
 static void sil24_error_handler(struct ata_port *ap);
 static void sil24_post_internal_cmd(struct ata_queued_cmd *qc);
 static int sil24_port_start(struct ata_port *ap);
-static void sil24_port_stop(struct ata_port *ap);
-static void sil24_host_stop(struct ata_host *host);
 static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
 #ifdef CONFIG_PM
 static int sil24_pci_device_resume(struct pci_dev *pdev);
@@ -362,7 +359,7 @@ static struct pci_driver sil24_pci_driver = {
 	.name			= DRV_NAME,
 	.id_table		= sil24_pci_tbl,
 	.probe			= sil24_init_one,
-	.remove			= ata_pci_remove_one, /* safe? */
+	.remove			= ata_pci_remove_one,
 #ifdef CONFIG_PM
 	.suspend		= ata_pci_device_suspend,
 	.resume			= sil24_pci_device_resume,
@@ -416,8 +413,6 @@ static const struct ata_port_operations sil24_ops = {
 	.post_internal_cmd	= sil24_post_internal_cmd,
 
 	.port_start		= sil24_port_start,
-	.port_stop		= sil24_port_stop,
-	.host_stop		= sil24_host_stop,
 };
 
 /*
@@ -938,13 +933,6 @@ static void sil24_post_internal_cmd(struct ata_queued_cmd *qc)
 		sil24_init_port(ap);
 }
 
-static inline void sil24_cblk_free(struct sil24_port_priv *pp, struct device *dev)
-{
-	const size_t cb_size = sizeof(*pp->cmd_block) * SIL24_MAX_CMDS;
-
-	dma_free_coherent(dev, cb_size, pp->cmd_block, pp->cmd_block_dma);
-}
-
 static int sil24_port_start(struct ata_port *ap)
 {
 	struct device *dev = ap->host->dev;
@@ -952,22 +940,22 @@ static int sil24_port_start(struct ata_port *ap)
 	union sil24_cmd_block *cb;
 	size_t cb_size = sizeof(*cb) * SIL24_MAX_CMDS;
 	dma_addr_t cb_dma;
-	int rc = -ENOMEM;
+	int rc;
 
-	pp = kzalloc(sizeof(*pp), GFP_KERNEL);
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
 	if (!pp)
-		goto err_out;
+		return -ENOMEM;
 
 	pp->tf.command = ATA_DRDY;
 
-	cb = dma_alloc_coherent(dev, cb_size, &cb_dma, GFP_KERNEL);
+	cb = dmam_alloc_coherent(dev, cb_size, &cb_dma, GFP_KERNEL);
 	if (!cb)
-		goto err_out_pp;
+		return -ENOMEM;
 	memset(cb, 0, cb_size);
 
 	rc = ata_pad_alloc(ap, dev);
 	if (rc)
-		goto err_out_pad;
+		return rc;
 
 	pp->cmd_block = cb;
 	pp->cmd_block_dma = cb_dma;
@@ -975,33 +963,6 @@ static int sil24_port_start(struct ata_port *ap)
 	ap->private_data = pp;
 
 	return 0;
-
-err_out_pad:
-	sil24_cblk_free(pp, dev);
-err_out_pp:
-	kfree(pp);
-err_out:
-	return rc;
-}
-
-static void sil24_port_stop(struct ata_port *ap)
-{
-	struct device *dev = ap->host->dev;
-	struct sil24_port_priv *pp = ap->private_data;
-
-	sil24_cblk_free(pp, dev);
-	ata_pad_free(ap, dev);
-	kfree(pp);
-}
-
-static void sil24_host_stop(struct ata_host *host)
-{
-	struct sil24_host_priv *hpriv = host->private_data;
-	struct pci_dev *pdev = to_pci_dev(host->dev);
-
-	pci_iounmap(pdev, hpriv->host_base);
-	pci_iounmap(pdev, hpriv->port_base);
-	kfree(hpriv);
 }
 
 static void sil24_init_controller(struct pci_dev *pdev, int n_ports,
@@ -1066,43 +1027,38 @@ static void sil24_init_controller(struct pci_dev *pdev, int n_ports,
 static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version = 0;
+	struct device *dev = &pdev->dev;
 	unsigned int board_id = (unsigned int)ent->driver_data;
 	struct ata_port_info *pinfo = &sil24_port_info[board_id];
-	struct ata_probe_ent *probe_ent = NULL;
-	struct sil24_host_priv *hpriv = NULL;
-	void __iomem *host_base = NULL;
-	void __iomem *port_base = NULL;
+	struct ata_probe_ent *probe_ent;
+	struct sil24_host_priv *hpriv;
+	void __iomem *host_base;
+	void __iomem *port_base;
 	int i, rc;
 	u32 tmp;
 
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc)
-		goto out_disable;
+		return rc;
 
-	rc = -ENOMEM;
 	/* map mmio registers */
-	host_base = pci_iomap(pdev, 0, 0);
-	if (!host_base)
-		goto out_free;
-	port_base = pci_iomap(pdev, 2, 0);
-	if (!port_base)
-		goto out_free;
+	host_base = pcim_iomap(pdev, 0, 0);
+	port_base = pcim_iomap(pdev, 2, 0);
+	if (!host_base || !port_base)
+		return -ENOMEM;
 
 	/* allocate & init probe_ent and hpriv */
-	probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (!probe_ent)
-		goto out_free;
-
-	hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv)
-		goto out_free;
+	probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
+	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!probe_ent || !hpriv)
+		return -ENOMEM;
 
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
@@ -1132,7 +1088,7 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 			if (rc) {
 				dev_printk(KERN_ERR, &pdev->dev,
 					   "64-bit DMA enable failed\n");
-				goto out_free;
+				return rc;
 			}
 		}
 	} else {
@@ -1140,13 +1096,13 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		if (rc) {
 			dev_printk(KERN_ERR, &pdev->dev,
 				   "32-bit DMA enable failed\n");
-			goto out_free;
+			return rc;
 		}
 		rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
 		if (rc) {
 			dev_printk(KERN_ERR, &pdev->dev,
 				   "32-bit consistent DMA enable failed\n");
-			goto out_free;
+			return rc;
 		}
 	}
 
@@ -1176,23 +1132,11 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_set_master(pdev);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
-	kfree(probe_ent);
+	devm_kfree(dev, probe_ent);
 	return 0;
-
- out_free:
-	if (host_base)
-		pci_iounmap(pdev, host_base);
-	if (port_base)
-		pci_iounmap(pdev, port_base);
-	kfree(probe_ent);
-	kfree(hpriv);
-	pci_release_regions(pdev);
- out_disable:
-	pci_disable_device(pdev);
-	return rc;
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index af6f42578f5..7e51f1c0f7c 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -126,8 +126,6 @@ static const struct ata_port_operations sis_ops = {
 	.scr_read		= sis_scr_read,
 	.scr_write		= sis_scr_write,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info sis_port_info = {
@@ -260,29 +258,28 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	int rc;
 	u32 genctl, val;
 	struct ata_port_info pi = sis_port_info, *ppi[2] = { &pi, &pi };
-	int pci_dev_busy = 0;
 	u8 pmr;
 	u8 port2_start = 0x20;
 
 	if (!printed_version++)
 		dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
 	/* check and see if the SCRs are in IO space or PCI cfg space */
 	pci_read_config_dword(pdev, SIS_GENCTL, &genctl);
@@ -351,10 +348,8 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
-	if (!probe_ent) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	if (!probe_ent)
+		return -ENOMEM;
 
 	if (!(probe_ent->port_flags & SIS_FLAG_CFGSCR)) {
 		probe_ent->port[0].scr_addr =
@@ -366,20 +361,12 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_set_master(pdev);
 	pci_intx(pdev, 1);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -EIO;
 
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
 
-err_out_regions:
-	pci_release_regions(pdev);
-
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
-
 }
 
 static int __init sis_init(void)
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index 5f4e82ade6c..9c48b418ad7 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -359,8 +359,6 @@ static const struct ata_port_operations k2_sata_ops = {
 	.scr_read		= k2_sata_scr_read,
 	.scr_write		= k2_sata_scr_write,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_pci_host_stop,
 };
 
 static void k2_sata_setup_port(struct ata_ioports *port, unsigned long base)
@@ -386,12 +384,12 @@ static void k2_sata_setup_port(struct ata_ioports *port, unsigned long base)
 static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
-	struct ata_probe_ent *probe_ent = NULL;
+	struct device *dev = &pdev->dev;
+	struct ata_probe_ent *probe_ent;
 	unsigned long base;
 	void __iomem *mmio_base;
 	const struct k2_board_info *board_info =
 			&k2_board_info[ent->driver_data];
-	int pci_dev_busy = 0;
 	int rc;
 	int i;
 
@@ -402,7 +400,7 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 	 * If this driver happens to only be useful on Apple's K2, then
 	 * we should check that here as it has a normal Serverworks ID
 	 */
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 	/*
@@ -415,32 +413,27 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 	/* Request PCI regions */
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
-	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	probe_ent = devm_kzalloc(dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
-	memset(probe_ent, 0, sizeof(*probe_ent));
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
-	mmio_base = pci_iomap(pdev, 5, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, 5, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 	base = (unsigned long) mmio_base;
 
 	/* Clear a magic bit in SCR1 according to Darwin, those help
@@ -478,20 +471,11 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 
 	pci_set_master(pdev);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
+	devm_kfree(dev, probe_ent);
 	return 0;
-
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
 }
 
 /* 0x240 is device ID for Apple K2 device
diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c
index ae7992de4b0..d9838dcb4b0 100644
--- a/drivers/ata/sata_sx4.c
+++ b/drivers/ata/sata_sx4.c
@@ -42,7 +42,6 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 #include "sata_promise.h"
 
 #define DRV_NAME	"sata_sx4"
@@ -156,11 +155,9 @@ static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance);
 static void pdc_eng_timeout(struct ata_port *ap);
 static void pdc_20621_phy_reset (struct ata_port *ap);
 static int pdc_port_start(struct ata_port *ap);
-static void pdc_port_stop(struct ata_port *ap);
 static void pdc20621_qc_prep(struct ata_queued_cmd *qc);
 static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
 static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
-static void pdc20621_host_stop(struct ata_host *host);
 static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe);
 static int pdc20621_detect_dimm(struct ata_probe_ent *pe);
 static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe,
@@ -210,8 +207,6 @@ static const struct ata_port_operations pdc_20621_ops = {
 	.irq_handler		= pdc20621_interrupt,
 	.irq_clear		= pdc20621_irq_clear,
 	.port_start		= pdc_port_start,
-	.port_stop		= pdc_port_stop,
-	.host_stop		= pdc20621_host_stop,
 };
 
 static const struct ata_port_info pdc_port_info[] = {
@@ -243,18 +238,6 @@ static struct pci_driver pdc_sata_pci_driver = {
 };
 
 
-static void pdc20621_host_stop(struct ata_host *host)
-{
-	struct pci_dev *pdev = to_pci_dev(host->dev);
-	struct pdc_host_priv *hpriv = host->private_data;
-	void __iomem *dimm_mmio = hpriv->dimm_mmio;
-
-	pci_iounmap(pdev, dimm_mmio);
-	kfree(hpriv);
-
-	pci_iounmap(pdev, host->mmio_base);
-}
-
 static int pdc_port_start(struct ata_port *ap)
 {
 	struct device *dev = ap->host->dev;
@@ -265,43 +248,19 @@ static int pdc_port_start(struct ata_port *ap)
 	if (rc)
 		return rc;
 
-	pp = kmalloc(sizeof(*pp), GFP_KERNEL);
-	if (!pp) {
-		rc = -ENOMEM;
-		goto err_out;
-	}
-	memset(pp, 0, sizeof(*pp));
+	pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL);
+	if (!pp)
+		return -ENOMEM;
 
-	pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL);
-	if (!pp->pkt) {
-		rc = -ENOMEM;
-		goto err_out_kfree;
-	}
+	pp->pkt = dmam_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL);
+	if (!pp->pkt)
+		return -ENOMEM;
 
 	ap->private_data = pp;
 
 	return 0;
-
-err_out_kfree:
-	kfree(pp);
-err_out:
-	ata_port_stop(ap);
-	return rc;
-}
-
-
-static void pdc_port_stop(struct ata_port *ap)
-{
-	struct device *dev = ap->host->dev;
-	struct pdc_port_priv *pp = ap->private_data;
-
-	ap->private_data = NULL;
-	dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma);
-	kfree(pp);
-	ata_port_stop(ap);
 }
 
-
 static void pdc_20621_phy_reset (struct ata_port *ap)
 {
 	VPRINTK("ENTER\n");
@@ -1365,65 +1324,53 @@ static void pdc_20621_init(struct ata_probe_ent *pe)
 static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
-	struct ata_probe_ent *probe_ent = NULL;
+	struct ata_probe_ent *probe_ent;
 	unsigned long base;
 	void __iomem *mmio_base;
-	void __iomem *dimm_mmio = NULL;
-	struct pdc_host_priv *hpriv = NULL;
+	void __iomem *dimm_mmio;
+	struct pdc_host_priv *hpriv;
 	unsigned int board_idx = (unsigned int) ent->driver_data;
-	int pci_dev_busy = 0;
 	int rc;
 
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
-	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 
-	memset(probe_ent, 0, sizeof(*probe_ent));
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
-	mmio_base = pci_iomap(pdev, 3, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, 3, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 	base = (unsigned long) mmio_base;
 
-	hpriv = kmalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv) {
-		rc = -ENOMEM;
-		goto err_out_iounmap;
-	}
-	memset(hpriv, 0, sizeof(*hpriv));
+	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!hpriv)
+		return -ENOMEM;
 
-	dimm_mmio = pci_iomap(pdev, 4, 0);
-	if (!dimm_mmio) {
-		kfree(hpriv);
-		rc = -ENOMEM;
-		goto err_out_iounmap;
-	}
+	dimm_mmio = pcim_iomap(pdev, 4, 0);
+	if (!dimm_mmio)
+		return -ENOMEM;
 
 	hpriv->dimm_mmio = dimm_mmio;
 
@@ -1451,31 +1398,15 @@ static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *
 
 	/* initialize adapter */
 	/* initialize local dimm */
-	if (pdc20621_dimm_init(probe_ent)) {
-		rc = -ENOMEM;
-		goto err_out_iounmap_dimm;
-	}
+	if (pdc20621_dimm_init(probe_ent))
+		return -ENOMEM;
 	pdc_20621_init(probe_ent);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
-
-err_out_iounmap_dimm:		/* only get to this label if 20621 */
-	kfree(hpriv);
-	pci_iounmap(pdev, dimm_mmio);
-err_out_iounmap:
-	pci_iounmap(pdev, mmio_base);
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
 }
 
 
diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
index a43aec62d50..22eed6d0749 100644
--- a/drivers/ata/sata_uli.c
+++ b/drivers/ata/sata_uli.c
@@ -122,8 +122,6 @@ static const struct ata_port_operations uli_ops = {
 	.scr_write		= uli_scr_write,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info uli_port_info = {
@@ -189,41 +187,36 @@ static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct ata_port_info *ppi[2];
 	int rc;
 	unsigned int board_idx = (unsigned int) ent->driver_data;
-	int pci_dev_busy = 0;
 	struct uli_priv *hpriv;
 
 	if (!printed_version++)
 		dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
 	ppi[0] = ppi[1] = &uli_port_info;
 	probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
-	if (!probe_ent) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+	if (!probe_ent)
+		return -ENOMEM;
 
-	hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv) {
-		rc = -ENOMEM;
-		goto err_out_probe_ent;
-	}
+	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
+	if (!hpriv)
+		return -ENOMEM;
 
 	probe_ent->private_data = hpriv;
 
@@ -269,21 +262,11 @@ static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_set_master(pdev);
 	pci_intx(pdev, 1);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
-
-err_out_probe_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
-
 }
 
 static int __init uli_init(void)
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index e95acfac30b..c7f527578d1 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -44,7 +44,6 @@
 #include <linux/device.h>
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
-#include <asm/io.h>
 
 #define DRV_NAME	"sata_via"
 #define DRV_VERSION	"2.0"
@@ -146,8 +145,6 @@ static const struct ata_port_operations vt6420_sata_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static const struct ata_port_operations vt6421_pata_ops = {
@@ -180,8 +177,6 @@ static const struct ata_port_operations vt6421_pata_ops = {
 	.irq_clear		= ata_bmdma_irq_clear,
 
 	.port_start		= vt6421_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static const struct ata_port_operations vt6421_sata_ops = {
@@ -214,8 +209,6 @@ static const struct ata_port_operations vt6421_sata_ops = {
 	.scr_write		= svia_scr_write,
 
 	.port_start		= vt6421_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info vt6420_port_info = {
@@ -446,7 +439,7 @@ static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev)
 	struct ata_probe_ent *probe_ent;
 	unsigned int i;
 
-	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
 	if (!probe_ent)
 		return NULL;
 
@@ -517,20 +510,19 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct ata_probe_ent *probe_ent;
 	int board_id = (int) ent->driver_data;
 	const int *bar_sizes;
-	int pci_dev_busy = 0;
 	u8 tmp8;
 
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	if (board_id == vt6420) {
@@ -539,8 +531,7 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 			dev_printk(KERN_ERR, &pdev->dev,
 				   "SATA master/slave not supported (0x%x)\n",
 		       		   (int) tmp8);
-			rc = -EIO;
-			goto err_out_regions;
+			return -EIO;
 		}
 
 		bar_sizes = &svia_bar_sizes[0];
@@ -556,16 +547,15 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 				i,
 			        (unsigned long long)pci_resource_start(pdev, i),
 			        (unsigned long long)pci_resource_len(pdev, i));
-			rc = -ENODEV;
-			goto err_out_regions;
+			return -ENODEV;
 		}
 
 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 
 	if (board_id == vt6420)
 		probe_ent = vt6420_init_probe_ent(pdev);
@@ -574,26 +564,18 @@ static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (!probe_ent) {
 		dev_printk(KERN_ERR, &pdev->dev, "out of memory\n");
-		rc = -ENOMEM;
-		goto err_out_regions;
+		return -ENOMEM;
 	}
 
 	svia_configure(pdev);
 
 	pci_set_master(pdev);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
-	kfree(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
-
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
 }
 
 static int __init svia_init(void)
diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
index 8d1683ebadc..af77f71bdaa 100644
--- a/drivers/ata/sata_vsc.c
+++ b/drivers/ata/sata_vsc.c
@@ -94,13 +94,6 @@ enum {
 			      VSC_SATA_INT_ERROR_P    | VSC_SATA_INT_ERROR_R | \
 			      VSC_SATA_INT_ERROR_E    | VSC_SATA_INT_ERROR_M | \
 			      VSC_SATA_INT_PHY_CHANGE),
-
-	/* Host private flags (hp_flags) */
-	VSC_SATA_HP_FLAG_MSI    = (1 << 0),
-};
-
-struct vsc_sata_host_priv {
-	u32	hp_flags;
 };
 
 #define is_vsc_sata_int_err(port_idx, int_status) \
@@ -124,20 +117,6 @@ static void vsc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
 }
 
 
-static void vsc_sata_host_stop(struct ata_host *host)
-{
-	struct vsc_sata_host_priv *hpriv = host->private_data;
-	struct pci_dev *pdev = to_pci_dev(host->dev);
-
-	if (hpriv->hp_flags & VSC_SATA_HP_FLAG_MSI)
-		pci_disable_msi(pdev);
-	else
-		pci_intx(pdev, 0);
-	kfree (hpriv);
-	ata_pci_host_stop(host);
-}
-
-
 static void vsc_intr_mask_update(struct ata_port *ap, u8 ctl)
 {
 	void __iomem *mask_addr;
@@ -331,8 +310,6 @@ static const struct ata_port_operations vsc_sata_ops = {
 	.scr_read		= vsc_sata_scr_read,
 	.scr_write		= vsc_sata_scr_write,
 	.port_start		= ata_port_start,
-	.port_stop		= ata_port_stop,
-	.host_stop		= vsc_sata_host_stop,
 };
 
 static void __devinit vsc_sata_setup_port(struct ata_ioports *port, unsigned long base)
@@ -361,31 +338,27 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
 {
 	static int printed_version;
 	struct ata_probe_ent *probe_ent = NULL;
-	struct vsc_sata_host_priv *hpriv;
 	unsigned long base;
-	int pci_dev_busy = 0;
 	void __iomem *mmio_base;
 	int rc;
 
 	if (!printed_version++)
 		dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
 
-	rc = pci_enable_device(pdev);
+	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;
 
 	/*
 	 * Check if we have needed resource mapped.
 	 */
-	if (pci_resource_len(pdev, 0) == 0) {
-		rc = -ENODEV;
-		goto err_out;
-	}
+	if (pci_resource_len(pdev, 0) == 0)
+		return -ENODEV;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
 	if (rc) {
-		pci_dev_busy = 1;
-		goto err_out;
+		pcim_pin_device(pdev);
+		return rc;
 	}
 
 	/*
@@ -393,44 +366,29 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
 	 */
 	rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 	if (rc)
-		goto err_out_regions;
+		return rc;
 	rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
 	if (rc)
-		goto err_out_regions;
-
-	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
-	if (probe_ent == NULL) {
-		rc = -ENOMEM;
-		goto err_out_regions;
-	}
+		return rc;
 
-	memset(probe_ent, 0, sizeof(*probe_ent));
+	probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL);
+	if (probe_ent == NULL)
+		return -ENOMEM;
 	probe_ent->dev = pci_dev_to_dev(pdev);
 	INIT_LIST_HEAD(&probe_ent->node);
 
-	mmio_base = pci_iomap(pdev, 0, 0);
-	if (mmio_base == NULL) {
-		rc = -ENOMEM;
-		goto err_out_free_ent;
-	}
+	mmio_base = pcim_iomap(pdev, 0, 0);
+	if (mmio_base == NULL)
+		return -ENOMEM;
 	base = (unsigned long) mmio_base;
 
-	hpriv = kmalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv) {
-		rc = -ENOMEM;
-		goto err_out_iounmap;
-	}
-	memset(hpriv, 0, sizeof(*hpriv));
-
 	/*
 	 * Due to a bug in the chip, the default cache line size can't be used
 	 */
 	pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x80);
 
-	if (pci_enable_msi(pdev) == 0) {
-		hpriv->hp_flags |= VSC_SATA_HP_FLAG_MSI;
+	if (pci_enable_msi(pdev) == 0)
 		pci_intx(pdev, 0);
-	}
 	else
 		probe_ent->irq_flags = IRQF_SHARED;
 
@@ -441,7 +399,6 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
 	probe_ent->n_ports = 4;
 	probe_ent->irq = pdev->irq;
 	probe_ent->mmio_base = mmio_base;
-	probe_ent->private_data = hpriv;
 
 	/* We don't care much about the PIO/UDMA masks, but the core won't like us
 	 * if we don't fill these
@@ -466,22 +423,11 @@ static int __devinit vsc_sata_init_one (struct pci_dev *pdev, const struct pci_d
 	 */
 	pci_write_config_dword(pdev, 0x98, 0);
 
-	/* FIXME: check ata_device_add return value */
-	ata_device_add(probe_ent);
+	if (!ata_device_add(probe_ent))
+		return -ENODEV;
 
-	kfree(probe_ent);
+	devm_kfree(&pdev->dev, probe_ent);
 	return 0;
-
-err_out_iounmap:
-	pci_iounmap(pdev, mmio_base);
-err_out_free_ent:
-	kfree(probe_ent);
-err_out_regions:
-	pci_release_regions(pdev);
-err_out:
-	if (!pci_dev_busy)
-		pci_disable_device(pdev);
-	return rc;
 }
 
 static const struct pci_device_id vsc_sata_pci_tbl[] = {