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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>
This commit is contained in:
Markus Elfring 2019-09-18 09:34:11 +02:00 committed by Herbert Xu
parent e1f653cbe7
commit 0600e9c071
1 changed files with 1 additions and 8 deletions
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9
drivers/char/hw_random/mtk-rng.c
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@ -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) static int mtk_rng_probe(struct platform_device *pdev)
{ {
struct resource *res;
int ret; int ret;
struct mtk_rng *priv; 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); priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv) if (!priv)
return -ENOMEM; return -ENOMEM;
@ -135,7 +128,7 @@ static int mtk_rng_probe(struct platform_device *pdev)
return ret; return ret;
} }
priv->base = devm_ioremap_resource(&pdev->dev, res); priv->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->base)) if (IS_ERR(priv->base))
return PTR_ERR(priv->base); return PTR_ERR(priv->base);