From: Fabio Estevam <fabio.este...@freescale.com>

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.este...@freescale.com>
---
 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 19a12ac..6a86b6f 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);
-- 
1.8.1.2

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