[PATCH 03/33] vt: might_sleep() annotation for do_blank_screen

[Daniel Vetter]

For symmetry reasons with do_unblank_screen, except without the
oops_in_progress special case.

Just a drive-by annotation while I'm trying to untangle the fbcon vs.
fbdev screen blank/unblank maze.

Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
Reviewed-by: Sam Ravnborg <sam at ravnborg.org>
Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Cc: Nicolas Pitre <nicolas.pitre at linaro.org>
Cc: Adam Borowski <kilobyte at angband.pl>
Cc: Martin Hostettler <textshell at uchuujin.de>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Mikulas Patocka <mpatocka at redhat.com>
---
 drivers/tty/vt/vt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index fdd12f8c3deb..bc9813b14c58 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4159,6 +4159,8 @@ void do_blank_screen(int entering_gfx)
 	struct vc_data *vc = vc_cons[fg_console].d;
 	int i;
 
+	might_sleep();
+
 	WARN_CONSOLE_UNLOCKED();
 
 	if (console_blanked) {
-- 
2.20.1