watchdog: sc520_wdt: Mark expected switch fall-through
authorGustavo A. R. Silva <gustavo@embeddedor.com>
Tue, 26 Feb 2019 18:01:14 +0000 (12:01 -0600)
committerWim Van Sebroeck <wim@linux-watchdog.org>
Sat, 2 Mar 2019 14:28:22 +0000 (15:28 +0100)
commite70d3547fc44892d12543b039c40dbadc0ffaaee
treecdae28e8eb5036e19da95d09b8aa65338fb67e90
parent3612b87d181beffe2ad7ff21c46f5a5bb2c58c65
watchdog: sc520_wdt: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warning:

drivers/watchdog/sc520_wdt.c: In function ‘fop_ioctl’:
drivers/watchdog/sc520_wdt.c:326:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   wdt_keepalive();
   ^~~~~~~~~~~~~~~
drivers/watchdog/sc520_wdt.c:329:2: note: here
  case WDIOC_GETTIMEOUT:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.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@linux-watchdog.org>
drivers/watchdog/sc520_wdt.c