| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.17 080/343] drm/sprd: fix potential NULL dereference | Date | Tue, 12 Apr 2022 08:28:18 +0200 |
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From: Kevin Tang <kevin3.tang@gmail.com>
[ Upstream commit 8668658aebb0a19d877d5a81c004baf716c4aaa6 ]
'drm' could be null in sprd_drm_shutdown, and drm_warn maybe dereference it, remove this warning log.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kevin Tang <kevin3.tang@gmail.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Thomas 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
Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/gpu/drm/sprd/sprd_drm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/sprd/sprd_drm.c b/drivers/gpu/drm/sprd/sprd_drm.c index a077e2d4d721..af2be97d5ed0 100644 --- a/drivers/gpu/drm/sprd/sprd_drm.c +++ b/drivers/gpu/drm/sprd/sprd_drm.c @@ -155,7 +155,7 @@ 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; } -- 2.35.1
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