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

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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@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Nicolas Pitre <nicolas.pitre@xxxxxxxxxx>
Cc: Adam Borowski <kilobyte@xxxxxxxxxx>
Cc: Martin Hostettler <textshell@xxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Mikulas Patocka <mpatocka@xxxxxxxxxx>
---
 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 650c66886c80..8b4b3a49ec33 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4158,6 +4158,8 @@ 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

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