hwrng: hisi - use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/hisi-rng.c b/drivers/char/hw_random/hisi-rng.c
index c663d5dd85bb04f572651bfe64d65b62b20a1d3b..6815e17a9834ca141b04f0fdae20f4101285ded5 100644 (file)
--- a/drivers/char/hw_random/hisi-rng.c
+++ b/drivers/char/hw_random/hisi-rng.c
@@ -73,7 +73,6 @@ static int hisi_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 static int hisi_rng_probe(struct platform_device *pdev)
 {
        struct hisi_rng *rng;
-       struct resource *res;
        int ret;
 
        rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
@@ -82,8 +81,7 @@ static int hisi_rng_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, rng);
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       rng->base = devm_ioremap_resource(&pdev->dev, res);
+       rng->base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(rng->base))
                return PTR_ERR(rng->base);