watchdog: davinci: Handle return value of clk_prepare_enable

clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 0e731d7..1ba9ead 100644 (file)
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -173,7 +173,11 @@ static int davinci_wdt_probe(struct platform_device *pdev)
                return PTR_ERR(davinci_wdt->clk);
        }
 
-       clk_prepare_enable(davinci_wdt->clk);
+       ret = clk_prepare_enable(davinci_wdt->clk);
+       if (ret) {
+               dev_err(&pdev->dev, "failed to prepare clock\n");
+               return ret;
+       }
 
        platform_set_drvdata(pdev, davinci_wdt);