hwrng: ixp4xx - Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/ixp4xx-rng.c b/drivers/char/hw_random/ixp4xx-rng.c
index 188854d..7df5e9f 100644 (file)
--- a/drivers/char/hw_random/ixp4xx-rng.c
+++ b/drivers/char/hw_random/ixp4xx-rng.c
@@ -42,13 +42,11 @@ static int ixp4xx_rng_probe(struct platform_device *pdev)
 {
        void __iomem * rng_base;
        struct device *dev = &pdev->dev;
-       struct resource *res;
 
        if (!cpu_is_ixp46x()) /* includes IXP455 */
                return -ENOSYS;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       rng_base = devm_ioremap_resource(dev, res);
+       rng_base = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(rng_base))
                return PTR_ERR(rng_base);