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iommu: Convert to devm_ioremap_resource()

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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>
This commit is contained in:
Thierry Reding 2013-01-21 11:09:06 +01:00 committed by Greg Kroah-Hartman
parent d4ed60259e
commit bc5e6dea81
1 changed files with 4 additions and 3 deletions
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7
drivers/iommu/tegra-smmu.c
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@ -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);