4.20-stable review patch. If anyone has any objections, please let me know.
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From: Nicolas Pitre nicolas.pitre@linaro.org
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@linaro.org Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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 @@ -2764,8 +2764,8 @@ rescan_last_byte: 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; }