From 8668658aebb0a19d877d5a81c004baf716c4aaa6 Mon Sep 17 00:00:00 2001 From: Kevin Tang Date: Sun, 16 Jan 2022 23:55:47 +0800 Subject: [PATCH] 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: Dan Carpenter Signed-off-by: Kevin Tang Reviewed-by: Javier Martinez Canillas Acked-by: Thomas Zimmermann 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 --- 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 286edae..a60ecdd 100644 --- a/drivers/gpu/drm/sprd/sprd_drm.c +++ b/drivers/gpu/drm/sprd/sprd_drm.c @@ -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; } -- 2.7.4