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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/st-rng.c
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@@ -102,7 +102,7 @@ static int st_rng_probe(struct platform_device *pdev)
dev_set_drvdata(&pdev->dev, ddata);
ret = hwrng_register(&ddata->ops);
ret = devm_hwrng_register(&pdev->dev, &ddata->ops);
if (ret) {
dev_err(&pdev->dev, "Failed to register HW RNG\n");
clk_disable_unprepare(clk);
@@ -118,8 +118,6 @@ static int st_rng_remove(struct platform_device *pdev)
{
struct st_rng_data *ddata = dev_get_drvdata(&pdev->dev);
hwrng_unregister(&ddata->ops);
clk_disable_unprepare(ddata->clk);
return 0;