From 9e01d0c6f63a59cc756c0028e17effdbadee7227 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 21 Jul 2013 14:41:38 -0300 Subject: [PATCH] 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 --- drivers/char/hw_random/mxc-rnga.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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); -- 2.34.1