[PATCH] watchdog: sc1200: Mark expected switch fall-through

From: Gustavo A. R. Silva
Date: Thu Feb 14 2019 - 15:20:46 EST

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

This patch fixes the following warning:

drivers/watchdog/sc1200wdt.c: In function âsc1200wdt_ioctlâ:
drivers/watchdog/sc1200wdt.c:241:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
sc1200wdt_write_data(WDTO, timeout);
drivers/watchdog/sc1200wdt.c:244:2: note: here

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

Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
drivers/watchdog/sc1200wdt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c
index 8e4e2fc13f87..e035a4d4b299 100644
--- a/drivers/watchdog/sc1200wdt.c
+++ b/drivers/watchdog/sc1200wdt.c
@@ -239,7 +239,7 @@ static long sc1200wdt_ioctl(struct file *file, unsigned int cmd,
return -EINVAL;
timeout = new_timeout;
sc1200wdt_write_data(WDTO, timeout);
- /* fall through and return the new timeout */
+ /* fall through - and return the new timeout */

return put_user(timeout * 60, p);