hwrng: mxc-rnga - use devm_platform_ioremap_resource() to simplify code

Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c
index ea2bf18..025083c 100644 (file)
--- a/drivers/char/hw_random/mxc-rnga.c
+++ b/drivers/char/hw_random/mxc-rnga.c
@@ -134,7 +134,6 @@ static void mxc_rnga_cleanup(struct hwrng *rng)
 static int __init mxc_rnga_probe(struct platform_device *pdev)
 {
        int err;
-       struct resource *res;
        struct mxc_rng *mxc_rng;
 
        mxc_rng = devm_kzalloc(&pdev->dev, sizeof(*mxc_rng), GFP_KERNEL);
@@ -158,8 +157,7 @@ static int __init mxc_rnga_probe(struct platform_device *pdev)
        if (err)
                return err;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       mxc_rng->mem = devm_ioremap_resource(&pdev->dev, res);
+       mxc_rng->mem = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(mxc_rng->mem)) {
                err = PTR_ERR(mxc_rng->mem);
                goto err_ioremap;