From c69d5276704e1a9c771de57c0a2e7b69ea3ea578 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 19 Nov 2012 14:50:30 +0530 Subject: [PATCH] drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c Check overlay_ops is not NULL as checked in the previous 'if' condition. Fixes the following smatch error: drivers/gpu/drm/exynos/exynos_drm_encoder.c:509 exynos_drm_encoder_plane_disable() error: we previously assumed 'overlay_ops' could be null (see line 499) Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_encoder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 607231a71b2d..f2df06c603f7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -513,6 +513,6 @@ void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data) * because the setting for disabling the overlay will be updated * at vsync. */ - if (overlay_ops->wait_for_vblank) + if (overlay_ops && overlay_ops->wait_for_vblank) overlay_ops->wait_for_vblank(manager->dev); } -- 2.39.5