drm/exynos: checked for null pointer
authorSeung-Woo Kim <sw0312.kim@samsung.com>
Fri, 4 Nov 2011 08:31:41 +0000 (17:31 +0900)
committerInki Dae <inki.dae@samsung.com>
Tue, 15 Nov 2011 05:58:46 +0000 (14:58 +0900)
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
drivers/gpu/drm/exynos/exynos_drm_encoder.c

index f15da9581a1e3433be172b0a169fea4bc645a2e0..866f419f485b9840e9540f17fe6d3db5774d7f79 100644 (file)
@@ -283,7 +283,8 @@ void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data)
        struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops;
        struct exynos_drm_overlay *overlay = data;
 
-       overlay_ops->mode_set(manager->dev, overlay);
+       if (overlay_ops && overlay_ops->mode_set)
+               overlay_ops->mode_set(manager->dev, overlay);
 }
 
 void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data)
@@ -294,7 +295,8 @@ void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data)
 
        DRM_DEBUG_KMS("\n");
 
-       overlay_ops->disable(manager->dev);
+       if (overlay_ops && overlay_ops->disable)
+               overlay_ops->disable(manager->dev);
 
        /*
         * crtc is already detached from encoder and last