watchdog: wdt977: Mark expected switch fall-through

Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: arm):

drivers/watchdog/wdt977.c: In function ‘wdt977_ioctl’:
  LD [M]  drivers/media/platform/vicodec/vicodec.o
drivers/watchdog/wdt977.c:400:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   wdt977_keepalive();
   ^~~~~~~~~~~~~~~~~~
drivers/watchdog/wdt977.c:403:2: note: here
  case WDIOC_GETTIMEOUT:
  ^~~~

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
This commit is contained in:
Gustavo A. R. Silva 2019-07-29 17:30:57 -05:00
parent 24f2161887
commit d51c61637b

View File

@ -398,7 +398,7 @@ static long wdt977_ioctl(struct file *file, unsigned int cmd,
return -EINVAL;
wdt977_keepalive();
/* Fall */
/* Fall through */
case WDIOC_GETTIMEOUT:
return put_user(timeout, uarg.i);