diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 67261ca03fbf468d8c38edfa1af322a2f9b57124..e93bb0bbdd824737b610319407e95ac3ab69a224 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -2926,6 +2926,7 @@ void drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc,
 					NULL);
 	if (IS_ERR(blob)) {
 		ret = PTR_ERR(blob);
+		blob = NULL;
 		goto fail;
 	}