Commit 8668658a authored by Kevin Tang's avatar Kevin Tang Committed by kevin3.tang
Browse files

drm/sprd: fix potential NULL dereference 



'drm' could be null in sprd_drm_shutdown, and drm_warn maybe dereference
it, remove this warning log.

Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarKevin Tang <kevin3.tang@gmail.com>
Reviewed-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Acked-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/all/20220117084044.9210-1-kevin3.tang@gmail.com

v1 -> v2:
- Split checking platform_get_resource() return value to a separate patch
- Use dev_warn() instead of removing the warning log
parent cecece2c

drivers/gpu/drm/sprd/sprd_drm.c

+1 −1
Original line number Diff line number Diff line
@@ -154,7 +154,7 @@ static void sprd_drm_shutdown(struct platform_device *pdev) 
	struct drm_device *drm = platform_get_drvdata(pdev);



	if (!drm) {

		drm_warn(drm, "drm device is not available, no shutdown\n");

		dev_warn(&pdev->dev, "drm device is not available, no shutdown\n");

		return;

	}