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authorMarkus Elfring <elfring@users.sourceforge.net>2019-09-18 09:34:11 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2019-10-05 01:06:18 +1000
commit0600e9c07103c4694e0c0b0eff8cf6cf8a17ac42 (patch)
treecd6b7d7a7abe7b1b1040dd15784b584944282e60 /drivers/char
parente1f653cbe7dd615edc8e3ffe396be03068feed81 (diff)
hwrng: mediatek - Use devm_platform_ioremap_resource() in mtk_rng_probe()
Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/hw_random/mtk-rng.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index e649be5a5f13..8ad7b515a51b 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -105,16 +105,9 @@ static int mtk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
static int mtk_rng_probe(struct platform_device *pdev)
{
- struct resource *res;
int ret;
struct mtk_rng *priv;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "no iomem resource\n");
- return -ENXIO;
- }
-
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
@@ -135,7 +128,7 @@ static int mtk_rng_probe(struct platform_device *pdev)
return ret;
}
- priv->base = devm_ioremap_resource(&pdev->dev, res);
+ priv->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);