Commit 0fef97ac authored Jan 08, 2019 by Nicolas Pitre Committed by Greg Kroah-Hartman May 16, 2019

vt: always call notifier with the console lock held



[ Upstream commit 7e1d226345f89ad5d0216a9092c81386c89b4983 ]

Every invocation of notify_write() and notify_update() is performed
under the console lock, except for one case. Let's fix that.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>

parent bff576f3

drivers/tty/vt/vt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2435,8 +2435,8 @@ static int do_con_write(struct tty_struct tty, const unsigned char buf, int co
		}
		con_flush(vc, draw_from, draw_to, &draw_x);
		console_conditional_schedule();
		console_unlock();
		notify_update(vc);
		console_unlock();
		return n;
		}