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hwrng: drivers - Use device-managed registration API

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Use devm_hwrng_register to simplify the implementation.
Manual unregistration and some remove functions can be
removed now.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Chuhong Yuan
2019-07-25 16:01:55 +08:00
committed by Herbert Xu
parent dec0fb3946
commit 3e75241be8
9 changed files with 9 additions and 36 deletions
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4
drivers/char/hw_random/n2-drv.c
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@@ -768,7 +768,7 @@ static int n2rng_probe(struct platform_device *op)
np->hwrng.data_read = n2rng_data_read;
np->hwrng.priv = (unsigned long) np;
err = hwrng_register(&np->hwrng);
err = devm_hwrng_register(&pdev->dev, &np->hwrng);
if (err)
goto out_hvapi_unregister;
@@ -793,8 +793,6 @@ static int n2rng_remove(struct platform_device *op)
cancel_delayed_work_sync(&np->work);
hwrng_unregister(&np->hwrng);
sun4v_hvapi_unregister(HV_GRP_RNG);
return 0;