drivers/rtc/rtc-imxdi.c: 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c
index abd7f9091f34efdd21a3dec74d0e50599b10a524..cd741c77e085353b302c5759122c06eb246a163f 100644 (file)
--- a/drivers/rtc/rtc-imxdi.c
+++ b/drivers/rtc/rtc-imxdi.c
@@ -401,7 +401,9 @@ static int __init dryice_rtc_probe(struct platform_device *pdev)
        imxdi->clk = devm_clk_get(&pdev->dev, NULL);
        if (IS_ERR(imxdi->clk))
                return PTR_ERR(imxdi->clk);
-       clk_prepare_enable(imxdi->clk);
+       rc = clk_prepare_enable(imxdi->clk);
+       if (rc)
+               return rc;
 
        /*
         * Initialize dryice hardware