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authorThierry Reding <thierry.reding@avionic-design.de>2013-01-21 11:09:06 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-25 12:21:46 -0800
commitbc5e6dea81b025aba8fecec5c18f6faf81db9562 (patch)
tree4668578d17393611b74c166d908578a2683b20aa /drivers/iommu/tegra-smmu.c
parentd4ed60259e16106566ca489f64ebbd8a379d8972 (diff)
downloadlinux-bc5e6dea81b025aba8fecec5c18f6faf81db9562.tar.gz
iommu: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Joerg Roedel <joro@8bytes.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iommu/tegra-smmu.c')
-rw-r--r--drivers/iommu/tegra-smmu.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index fc178893789..f08dbcd2f17 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -19,6 +19,7 @@
#define pr_fmt(fmt) "%s(): " fmt, __func__
+#include <linux/err.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
@@ -1176,9 +1177,9 @@ static int tegra_smmu_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, i);
if (!res)
return -ENODEV;
- smmu->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
- if (!smmu->regs[i])
- return -EBUSY;
+ smmu->regs[i] = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(smmu->regs[i]))
+ return PTR_ERR(smmu->regs[i]);
}
err = of_get_dma_window(dev->of_node, NULL, 0, NULL, &base, &size);