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hwrng: atmel - Use devm_clk_get()

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Use devm_clk_get() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jingoo Han 2014-02-27 14:00:09 +09:00 committed by Herbert Xu
parent 4ea5d9998a
commit 0c0becd026
1 changed files with 2 additions and 6 deletions
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8
drivers/char/hw_random/atmel-rng.c
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@ -63,13 +63,13 @@ static int atmel_trng_probe(struct platform_device *pdev)
if (IS_ERR(trng->base))
return PTR_ERR(trng->base);
trng->clk = clk_get(&pdev->dev, NULL);
trng->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(trng->clk))
return PTR_ERR(trng->clk);
ret = clk_enable(trng->clk);
if (ret)
goto err_enable;
return ret;
writel(TRNG_KEY | 1, trng->base + TRNG_CR);
trng->rng.name = pdev->name;
@ -85,9 +85,6 @@ static int atmel_trng_probe(struct platform_device *pdev)
err_register:
clk_disable(trng->clk);
err_enable:
clk_put(trng->clk);
return ret;
}
@ -99,7 +96,6 @@ static int atmel_trng_remove(struct platform_device *pdev)
writel(TRNG_KEY, trng->base + TRNG_CR);
clk_disable(trng->clk);
clk_put(trng->clk);
return 0;
}