* [PATCH] video: fbdev: Check for null res pointer
@ 2021-12-20 6:34 Jiasheng Jiang
0 siblings, 0 replies; only message in thread
From: Jiasheng Jiang @ 2021-12-20 6:34 UTC (permalink / raw)
To: s.hauer, kernel, shawnguo, festevam, linux-imx
Cc: linux-fbdev, Jiasheng Jiang, dri-devel, linux-arm-kernel, linux-kernel
The return value of platform_get_resource() needs to be checked.
To avoid use of error pointer in case of the failure of alloc.
Fixes: f7018c213502 ("video: move fbdev to drivers/video/fbdev")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
drivers/video/fbdev/imxfb.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index ad598257ab38..68288756ffff 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);
--
2.25.1
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