[PATCH 09/14] drm/exynos: checked for null pointer

[Inki Dae]

From: Seung-Woo Kim <sw0312.kim at samsung.com>

Signed-off-by: Seung-Woo Kim <sw0312.kim at samsung.com>
Signed-off-by: Inki Dae <inki.dae at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_encoder.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index f15da95..866f419 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -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
-- 
1.7.4.1