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 ad598257ab3867a2e72759a3c959b9a778464ffd..68288756ffff376fec44c592ef0a913c58e30034 100644 (file)
--- 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);