Commit d259f94f authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva

watchdog: Mark expected switch fall-throughs

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/watchdog/ar7_wdt.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 237:3
drivers/watchdog/pcwd.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 653:3
drivers/watchdog/sb_wdog.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 204:3
drivers/watchdog/wdt.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 391:3
Reported-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
parent e9d81fc5
...@@ -235,6 +235,7 @@ static long ar7_wdt_ioctl(struct file *file, ...@@ -235,6 +235,7 @@ static long ar7_wdt_ioctl(struct file *file,
ar7_wdt_update_margin(new_margin); ar7_wdt_update_margin(new_margin);
ar7_wdt_kick(1); ar7_wdt_kick(1);
spin_unlock(&wdt_lock); spin_unlock(&wdt_lock);
/* Fall through */
case WDIOC_GETTIMEOUT: case WDIOC_GETTIMEOUT:
if (put_user(margin, (int *)arg)) if (put_user(margin, (int *)arg))
......
...@@ -651,7 +651,7 @@ static long pcwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ...@@ -651,7 +651,7 @@ static long pcwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return -EINVAL; return -EINVAL;
pcwd_keepalive(); pcwd_keepalive();
/* Fall */ /* Fall through */
case WDIOC_GETTIMEOUT: case WDIOC_GETTIMEOUT:
return put_user(heartbeat, argp); return put_user(heartbeat, argp);
......
...@@ -202,6 +202,7 @@ static long sbwdog_ioctl(struct file *file, unsigned int cmd, ...@@ -202,6 +202,7 @@ static long sbwdog_ioctl(struct file *file, unsigned int cmd,
timeout = time; timeout = time;
sbwdog_set(user_dog, timeout); sbwdog_set(user_dog, timeout);
sbwdog_pet(user_dog); sbwdog_pet(user_dog);
/* Fall through */
case WDIOC_GETTIMEOUT: case WDIOC_GETTIMEOUT:
/* /*
......
...@@ -389,7 +389,7 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ...@@ -389,7 +389,7 @@ static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
if (wdt_set_heartbeat(new_heartbeat)) if (wdt_set_heartbeat(new_heartbeat))
return -EINVAL; return -EINVAL;
wdt_ping(); wdt_ping();
/* Fall */ /* Fall through */
case WDIOC_GETTIMEOUT: case WDIOC_GETTIMEOUT:
return put_user(heartbeat, p); return put_user(heartbeat, p);
default: default:
......
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