[PATCH 2/6] vt: always call notifier with the console lock held

Nicolas Pitre
2019-01-09T03:55:49Z

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
---
drivers/tty/vt/vt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index b9004bd087..5b8b0e33f9 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2764,8 +2764,8 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
con_flush(vc, draw_from, draw_to, &draw_x);
vc_uniscr_debug_check(vc);
console_conditional_schedule();
- console_unlock();
notify_update(vc);
+ console_unlock();
return n;
}

--
2.20.1