hwrng: tx4939 - 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/tx4939-rng.c b/drivers/char/hw_random/tx4939-rng.c
index 1093583b579c56852daeda0d8d5033f484a48443..c8bd34e740fd174b37f3aa9573e608ae142a6ecd 100644 (file)
--- a/drivers/char/hw_random/tx4939-rng.c
+++ b/drivers/char/hw_random/tx4939-rng.c
@@ -107,14 +107,12 @@ static int tx4939_rng_data_read(struct hwrng *rng, u32 *buffer)
 static int __init tx4939_rng_probe(struct platform_device *dev)
 {
        struct tx4939_rng *rngdev;
-       struct resource *r;
        int i;
 
        rngdev = devm_kzalloc(&dev->dev, sizeof(*rngdev), GFP_KERNEL);
        if (!rngdev)
                return -ENOMEM;
-       r = platform_get_resource(dev, IORESOURCE_MEM, 0);
-       rngdev->base = devm_ioremap_resource(&dev->dev, r);
+       rngdev->base = devm_platform_ioremap_resource(dev, 0);
        if (IS_ERR(rngdev->base))
                return PTR_ERR(rngdev->base);