Pull release into acpica branch

1 files changed, 22 insertions, 4 deletions

diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index e9928024be7..f7cb00da38d 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -36,6 +36,7 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/pci.h>
+#include <linux/signal.h>	/* SA_SHIRQ */
 #include "cpci_hotplug.h"
 #include "cpcihp_zt5550.h"
 
@@ -78,11 +79,20 @@ static void __iomem *csr_int_mask;
 
 static int zt5550_hc_config(struct pci_dev *pdev)
 {
+	int ret;
+
 	/* Since we know that no boards exist with two HC chips, treat it as an error */
 	if(hc_dev) {
 		err("too many host controller devices?");
 		return -EBUSY;
 	}
+
+	ret = pci_enable_device(pdev);
+	if(ret) {
+		err("cannot enable %s\n", pci_name(pdev));
+		return ret;
+	}
+
 	hc_dev = pdev;
 	dbg("hc_dev = %p", hc_dev);
 	dbg("pci resource start %lx", pci_resource_start(hc_dev, 1));
@@ -91,7 +101,8 @@ static int zt5550_hc_config(struct pci_dev *pdev)
 	if(!request_mem_region(pci_resource_start(hc_dev, 1),
 				pci_resource_len(hc_dev, 1), MY_NAME)) {
 		err("cannot reserve MMIO region");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto exit_disable_device;
 	}
 
 	hc_registers =
@@ -99,9 +110,8 @@ static int zt5550_hc_config(struct pci_dev *pdev)
 	if(!hc_registers) {
 		err("cannot remap MMIO region %lx @ %lx",
 		    pci_resource_len(hc_dev, 1), pci_resource_start(hc_dev, 1));
-		release_mem_region(pci_resource_start(hc_dev, 1),
-				   pci_resource_len(hc_dev, 1));
-		return -ENODEV;
+		ret = -ENODEV;
+		goto exit_release_region;
 	}
 
 	csr_hc_index = hc_registers + CSR_HCINDEX;
@@ -124,6 +134,13 @@ static int zt5550_hc_config(struct pci_dev *pdev)
 	writeb((u8) ALL_DIRECT_INTS_MASK, csr_int_mask);
 	dbg("disabled timer0, timer1 and ENUM interrupts");
 	return 0;
+
+exit_release_region:
+	release_mem_region(pci_resource_start(hc_dev, 1),
+			   pci_resource_len(hc_dev, 1));
+exit_disable_device:
+	pci_disable_device(hc_dev);
+	return ret;
 }
 
 static int zt5550_hc_cleanup(void)
@@ -134,6 +151,7 @@ static int zt5550_hc_cleanup(void)
 	iounmap(hc_registers);
 	release_mem_region(pci_resource_start(hc_dev, 1),
 			   pci_resource_len(hc_dev, 1));
+	pci_disable_device(hc_dev);
 	return 0;
 }