From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Mon, 20 Dec 2021 08:11:32 +0000 (+0800)
Subject: video: fbdev: imxfb: Check for null res pointer
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9d54c5d47406588f7bae9b72bd9f922b33434327;p=linux.git

video: fbdev: imxfb: Check for null res pointer

The return value of platform_get_resource() needs to be checked.
To avoid use of error pointer in case that there is no suitable resource.

Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
---

diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index ad598257ab386..68288756ffff3 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -1083,6 +1083,8 @@ static int imxfb_remove(struct platform_device *pdev)
 	struct resource *res;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
 
 	imxfb_disable_controller(fbi);