drivers/rtc/rtc-mxc.c: check the return value from clk_prepare_enable()
authorFabio Estevam <fabio.estevam@freescale.com>
Thu, 23 Jan 2014 23:55:05 +0000 (15:55 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 24 Jan 2014 00:36:59 +0000 (16:36 -0800)
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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/rtc/rtc-mxc.c

index a3ed1cf..419874f 100644 (file)
@@ -394,7 +394,10 @@ static int mxc_rtc_probe(struct platform_device *pdev)
                return PTR_ERR(pdata->clk);
        }
 
-       clk_prepare_enable(pdata->clk);
+       ret = clk_prepare_enable(pdata->clk);
+       if (ret)
+               return ret;
+
        rate = clk_get_rate(pdata->clk);
 
        if (rate == 32768)