From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 18 Nov 2021 07:19:09 +0000 (+0100)
Subject: tty: remove tty NULL check from __do_SAK()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8cb28417dd2ce46938fea9aca9f56fb1f7b1934a;p=linux.git

tty: remove tty NULL check from __do_SAK()

Both do_SAK_work() and vc_SAK() provide a valid tty to __do_SAK(), so
remove the check.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211118071911.12059-3-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 829944dfaf48b..8e653bb4d7c73 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3033,9 +3033,6 @@ void __do_SAK(struct tty_struct *tty)
 	int		i;
 	unsigned long flags;
 
-	if (!tty)
-		return;
-
 	spin_lock_irqsave(&tty->ctrl.lock, flags);
 	session = get_pid(tty->ctrl.session);
 	spin_unlock_irqrestore(&tty->ctrl.lock, flags);