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char: 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.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thierry Reding 2013-01-21 11:08:59 +01:00 committed by Greg Kroah-Hartman
parent 75096579c3
commit c7c9e1c372
3 changed files with 12 additions and 10 deletions
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9
drivers/char/hw_random/exynos-rng.c
View File

@ -104,6 +104,7 @@ static int exynos_read(struct hwrng *rng, void *buf,
static int exynos_rng_probe(struct platform_device *pdev)
{
struct exynos_rng *exynos_rng;
struct resource *res;
exynos_rng = devm_kzalloc(&pdev->dev, sizeof(struct exynos_rng),
GFP_KERNEL);
@ -120,10 +121,10 @@ static int exynos_rng_probe(struct platform_device *pdev)
return -ENOENT;
}
exynos_rng->mem = devm_request_and_ioremap(&pdev->dev,
platform_get_resource(pdev, IORESOURCE_MEM, 0));
if (!exynos_rng->mem)
return -EBUSY;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
exynos_rng->mem = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(exynos_rng->mem))
return PTR_ERR(exynos_rng->mem);
platform_set_drvdata(pdev, exynos_rng);

6
drivers/char/hw_random/omap-rng.c
View File

@ -124,9 +124,9 @@ static int omap_rng_probe(struct platform_device *pdev)
goto err_ioremap;
}
priv->base = devm_request_and_ioremap(&pdev->dev, priv->mem_res);
if (!priv->base) {
ret = -ENOMEM;
priv->base = devm_ioremap_resource(&pdev->dev, priv->mem_res);
if (IS_ERR(priv->base)) {
ret = PTR_ERR(priv->base);
goto err_ioremap;
}
dev_set_drvdata(&pdev->dev, priv);

7
drivers/char/hw_random/tx4939-rng.c
View File

@ -7,6 +7,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@ -115,9 +116,9 @@ static int __init tx4939_rng_probe(struct platform_device *dev)
rngdev = devm_kzalloc(&dev->dev, sizeof(*rngdev), GFP_KERNEL);
if (!rngdev)
return -ENOMEM;
rngdev->base = devm_request_and_ioremap(&dev->dev, r);
if (!rngdev->base)
return -EBUSY;
rngdev->base = devm_ioremap_resource(&dev->dev, r);
if (IS_ERR(rngdev->base))
return PTR_ERR(rngdev->base);
rngdev->rng.name = dev_name(&dev->dev);
rngdev->rng.data_present = tx4939_rng_data_present;