[PATCH 3.16 055/202] vt: always call notifier with the console lock held

From: Ben Hutchings
Date: Sat Apr 27 2019 - 11:26:04 EST


3.16.66-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx>

commit 7e1d226345f89ad5d0216a9092c81386c89b4983 upstream.

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@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/tty/vt/vt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2415,8 +2415,8 @@ rescan_last_byte:
}
FLUSH
console_conditional_schedule();
- console_unlock();
notify_update(vc);
+ console_unlock();
return n;
#undef FLUSH
}