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tty: remove tty NULL check from __do_SAK()

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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>
This commit is contained in:
Jiri Slaby 2021-11-18 08:19:09 +01:00 committed by Greg Kroah-Hartman
parent 463d4c74bf
commit 8cb28417dd
1 changed files with 0 additions and 3 deletions
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3
drivers/tty/tty_io.c
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@ -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);