From: Fabio Estevam Date: Sun, 21 Jul 2013 17:41:38 +0000 (-0300) Subject: hwrng: mxc-rnga - Check the return value from clk_prepare_enable() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9e01d0c6f63a59cc756c0028e17effdbadee7227;p=linux-beck.git 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 Signed-off-by: Herbert Xu --- diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c index 19a12ac64a9e..6a86b6f56af2 100644 --- a/drivers/char/hw_random/mxc-rnga.c +++ b/drivers/char/hw_random/mxc-rnga.c @@ -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);