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authorJoonyoung Shim <jy0922.shim@samsung.com>2015-02-05 16:11:38 +0900
committerInki Dae <inki.dae@samsung.com>2015-02-09 23:56:36 +0900
commit936ce5cce66ce6f9b5138a1ac0fbf0c2d459a960 (patch)
treee4605fdc51c734ffe721f38842b84d495090aa93 /drivers/gpu/drm/exynos/exynos_drm_encoder.c
parentd9ea62566dbda7afb63c790057f3243f51abf771 (diff)
drm/exynos: fix NULL pointer reference
There is a case called disable_plane callback function even if plane->crtc is NULL from exynos_drm_encoder_disable and it will cause NULL pointer reference error. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_encoder.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_encoder.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index 7e282e3d6038..57de0bdc5a3b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -102,7 +102,7 @@ static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
/* all planes connected to this encoder should be also disabled. */
drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
- if (plane->crtc == encoder->crtc)
+ if (plane->crtc && (plane->crtc == encoder->crtc))
plane->funcs->disable_plane(plane);
}
}