Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 7 insertions, 31 deletions

diff --git a/drivers/iommu/msm_iommu_dev.c b/drivers/iommu/msm_iommu_dev.c
index 08ba4972da9..61def7cb526 100644
--- a/drivers/iommu/msm_iommu_dev.c
+++ b/drivers/iommu/msm_iommu_dev.c
@@ -127,13 +127,12 @@ static void msm_iommu_reset(void __iomem *base, int ncb)
 
 static int msm_iommu_probe(struct platform_device *pdev)
 {
-	struct resource *r, *r2;
+	struct resource *r;
 	struct clk *iommu_clk;
 	struct clk *iommu_pclk;
 	struct msm_iommu_drvdata *drvdata;
 	struct msm_iommu_dev *iommu_dev = pdev->dev.platform_data;
 	void __iomem *regs_base;
-	resource_size_t	len;
 	int ret, irq, par;
 
 	if (pdev->id == -1) {
@@ -178,35 +177,16 @@ static int msm_iommu_probe(struct platform_device *pdev)
 		iommu_clk = NULL;
 
 	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "physbase");
-
-	if (!r) {
-		ret = -ENODEV;
-		goto fail_clk;
-	}
-
-	len = resource_size(r);
-
-	r2 = request_mem_region(r->start, len, r->name);
-	if (!r2) {
-		pr_err("Could not request memory region: start=%p, len=%d\n",
-							(void *) r->start, len);
-		ret = -EBUSY;
+	regs_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(regs_base)) {
+		ret = PTR_ERR(regs_base);
 		goto fail_clk;
 	}
 
-	regs_base = ioremap(r2->start, len);
-
-	if (!regs_base) {
-		pr_err("Could not ioremap: start=%p, len=%d\n",
-			 (void *) r2->start, len);
-		ret = -EBUSY;
-		goto fail_mem;
-	}
-
 	irq = platform_get_irq_byname(pdev, "secure_irq");
 	if (irq < 0) {
 		ret = -ENODEV;
-		goto fail_io;
+		goto fail_clk;
 	}
 
 	msm_iommu_reset(regs_base, iommu_dev->ncb);
@@ -222,14 +202,14 @@ static int msm_iommu_probe(struct platform_device *pdev)
 	if (!par) {
 		pr_err("%s: Invalid PAR value detected\n", iommu_dev->name);
 		ret = -ENODEV;
-		goto fail_io;
+		goto fail_clk;
 	}
 
 	ret = request_irq(irq, msm_iommu_fault_handler, 0,
 			"msm_iommu_secure_irpt_handler", drvdata);
 	if (ret) {
 		pr_err("Request IRQ %d failed with ret=%d\n", irq, ret);
-		goto fail_io;
+		goto fail_clk;
 	}
 
 
@@ -250,10 +230,6 @@ static int msm_iommu_probe(struct platform_device *pdev)
 	clk_disable(iommu_pclk);
 
 	return 0;
-fail_io:
-	iounmap(regs_base);
-fail_mem:
-	release_mem_region(r->start, len);
 fail_clk:
 	if (iommu_clk) {
 		clk_disable(iommu_clk);