linux-kernel - [PATCH] drivers/video/fbdev/core/fbmem.c: add pointer judgment

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Message-Id: <20210519120028.7350-1-songqiang@uniontech.com>
Date:   Wed, 19 May 2021 20:00:28 +0800
From:   songqiang <songqiang@...ontech.com>
To:     sam@...nborg.org, b.zolnierkie@...sung.com,
        penguin-kernel@...ove.sakura.ne.jp, george.kennedy@...cle.com,
        arnd@...db.de, tzimmermann@...e.de, jgg@...pe.ca,
        willy@...radead.org
Cc:     dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, songqiang <songqiang@...ontech.com>
Subject: [PATCH] drivers/video/fbdev/core/fbmem.c: add pointer judgment

Signed-off-by: songqiang <songqiang@...ontech.com>
---
 drivers/video/fbdev/core/fbmem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 072780b0e570..6036ab849475 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1859,6 +1859,9 @@ void fb_set_suspend(struct fb_info *info, int state)
 {
 	WARN_CONSOLE_UNLOCKED();
 
+	if (!info) {
+		return;
+	}
 	if (state) {
 		fbcon_suspended(info);
 		info->state = FBINFO_STATE_SUSPENDED;
-- 
2.20.1