[PATCH] hw_random: timeriomem_rng: Use device-managed registration API

[Tian Tao]

Use devm_hwrng_register to get rid of manual unregistration.

Signed-off-by: Tian Tao <tiant...@hisilicon.com>
---
 drivers/char/hw_random/timeriomem-rng.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/hw_random/timeriomem-rng.c 
b/drivers/char/hw_random/timeriomem-rng.c
index e262445..9c237a0 100644
--- a/drivers/char/hw_random/timeriomem-rng.c
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -169,7 +169,7 @@ static int timeriomem_rng_probe(struct platform_device 
*pdev)
        priv->present = 1;
        complete(&priv->completion);
 
-       err = hwrng_register(&priv->rng_ops);
+       err = devm_hwrng_register(&pdev->dev, &priv->rng_ops);
        if (err) {
                dev_err(&pdev->dev, "problem registering\n");
                return err;
@@ -185,7 +185,6 @@ static int timeriomem_rng_remove(struct platform_device 
*pdev)
 {
        struct timeriomem_rng_private *priv = platform_get_drvdata(pdev);
 
-       hwrng_unregister(&priv->rng_ops);
        hrtimer_cancel(&priv->timer);
 
        return 0;
-- 
2.7.4