watchdog: mtk_wdt: signedness bug in mtk_wdt_start()
watchdog: mtk_wdt: signedness bug in mtk_wdt_start()

"ret" should be signed for the error handling to work correctly.  This
doesn't matter much in real life since mtk_wdt_set_timeout() always
succeeds.

Signed-off-by: Dan Carpenter <ff341aa343d564f9e53e9dcb6996be8c04859a66@oracle.com>
Reviewed-by: Matthias Brugger <28c780319e2c7f6db09304375fbd148f9c25d13f@gmail.com>
Reviewed-by: Guenter Roeck <ba324ca7b1c77fc20bb970d5aff6eea9377918a5@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <5f65f6985de1ebf15dde04e0dc4668211868bafa@iguana.be>

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