watchdog: s3c2410_wdt: Check return value of clk_prepare_enable
watchdog: s3c2410_wdt: Check return value of clk_prepare_enable

clk_prepare_enable can fail. Check its return value.

Signed-off-by: Sachin Kamat <1c3b1584a6008857f36c03c58f657c0fc16fc09e@linaro.org>
Signed-off-by: Wim Van Sebroeck <5f65f6985de1ebf15dde04e0dc4668211868bafa@iguana.be>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs