[PATCH] tty/n_hdlc: mark expected switch fall-through

From: Gustavo A. R. Silva
Date: Tue Feb 12 2019 - 14:19:58 EST

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

This patch fixes the following warning:

drivers/tty/n_hdlc.c: In function ân_hdlc_tty_ioctlâ:
drivers/tty/n_hdlc.c:775:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
switch (arg) {
drivers/tty/n_hdlc.c:782:2: 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/tty/n_hdlc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 8bdf42bc8fc8..e55c79eb6430 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -777,7 +777,7 @@ static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file,
- /* fall through to default */
+ /* fall through - to default */

error = n_tty_ioctl_helper(tty, file, cmd, arg);