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watchdog: scx200_wdt: Mark expected switch fall-through 

Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: i386):

drivers/watchdog/scx200_wdt.c: In function ‘scx200_wdt_ioctl’:
drivers/watchdog/scx200_wdt.c:188:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   scx200_wdt_ping();
   ^~~~~~~~~~~~~~~~~
drivers/watchdog/scx200_wdt.c:189:2: 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 15:03:49 -05:00
parent d259f94f72
commit 24f2161887
1 changed files with 1 additions and 0 deletions
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1
drivers/watchdog/scx200_wdt.c
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@ -186,6 +186,7 @@ static long scx200_wdt_ioctl(struct file *file, unsigned int cmd,
margin = new_margin;
scx200_wdt_update_margin();
scx200_wdt_ping();
/* Fall through */
case WDIOC_GETTIMEOUT:
if (put_user(margin, p))
return -EFAULT;