From 7076404f7c8d3fc01e8cb8ea259c7552b2061ae0 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 28 May 2019 11:02:33 +0200
Subject: [PATCH] fbdev: locking check for fb_set_suspend
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Just drive-by, nothing systematic yet.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: Peter Rosin <peda@axentia.se>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Manfred Schlaegl <manfred.schlaegl@ginzinger.com>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528090304.9388-3-daniel.vetter@ffwll.ch
---
 drivers/video/fbdev/core/fbmem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index d1949c9..8ba674f 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1985,6 +1985,8 @@ void fb_set_suspend(struct fb_info *info, int state)
 {
 	struct fb_event event;
 
+	WARN_CONSOLE_UNLOCKED();
+
 	event.info = info;
 	if (state) {
 		fb_notifier_call_chain(FB_EVENT_SUSPEND, &event);
-- 
2.7.4