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

Signed-off-by: Dmitry Torokhov <dmitry.torok...@gmail.com>
---
 drivers/char/hw_random/exynos-rng.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/char/hw_random/exynos-rng.c 
b/drivers/char/hw_random/exynos-rng.c
index fed0830..dc4701f 100644
--- 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);
-- 
2.2.0.rc0.207.ga3a616c

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