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hwrng: mxc-rnga - Check the return value from clk_prepare_enable() 

clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Fabio Estevam 2013-07-21 14:41:38 -03:00 committed by Herbert Xu
parent 69d2884deb
commit 9e01d0c6f6
1 changed files with 3 additions and 1 deletions
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4
drivers/char/hw_random/mxc-rnga.c
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@ -164,7 +164,9 @@ static int __init mxc_rnga_probe(struct platform_device *pdev)
goto out;
}
clk_prepare_enable(mxc_rng->clk);
err = clk_prepare_enable(mxc_rng->clk);
if (err)
goto out;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mxc_rng->mem = devm_ioremap_resource(&pdev->dev, res);