From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 28 May 2019 09:02:34 +0000 (+0200)
Subject: vt: might_sleep() annotation for do_blank_screen
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a135513c0b579be55c534b35e628be55578576b2;p=openwrt%2Fstaging%2Fblogic.git

vt: might_sleep() annotation for do_blank_screen

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@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Adam Borowski <kilobyte@angband.pl>
Cc: Martin Hostettler <textshell@uchuujin.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528090304.9388-4-daniel.vetter@ffwll.ch
---

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 5c0ca1c24b6f..30d29a04bfee 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4166,6 +4166,8 @@ 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) {