hwrng: exynos - make use of devm_hwrng_register

This allows us to get rid of remove() method.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c
index fed0830bf724322c9fdcb6ebb90828e5cabea67f..dc4701fd814f10aae76bfd852429f89bfe229c46 100644 (file)
--- a/drivers/char/hw_random/exynos-rng.c
+++ b/drivers/char/hw_random/exynos-rng.c
@@ -131,16 +131,7 @@ static int exynos_rng_probe(struct platform_device *pdev)
        pm_runtime_use_autosuspend(&pdev->dev);
        pm_runtime_enable(&pdev->dev);
 
-       return hwrng_register(&exynos_rng->rng);
-}
-
-static int exynos_rng_remove(struct platform_device *pdev)
-{
-       struct exynos_rng *exynos_rng = platform_get_drvdata(pdev);
-
-       hwrng_unregister(&exynos_rng->rng);
-
-       return 0;
+       return devm_hwrng_register(&pdev->dev, &exynos_rng->rng);
 }
 
 #ifdef CONFIG_PM
@@ -172,7 +163,6 @@ static struct platform_driver exynos_rng_driver = {
                .pm     = &exynos_rng_pm_ops,
        },
        .probe          = exynos_rng_probe,
-       .remove         = exynos_rng_remove,
 };
 
 module_platform_driver(exynos_rng_driver);