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| author | Sachin Kamat | 2012-11-19 10:20:30 +0100 |
|---|---|---|
| committer | Inki Dae | 2012-11-22 09:55:17 +0100 |
| commit | c69d5276704e1a9c771de57c0a2e7b69ea3ea578 (patch) | |
| tree | 1d5903d35a8805f10fc7b25040b6e46c620a4b7a | |
| parent | drm/exynos: Make exynos4/5_fimd_driver_data static (diff) | |
| download | kernel-qcow2-linux-c69d5276704e1a9c771de57c0a2e7b69ea3ea578.tar.gz kernel-qcow2-linux-c69d5276704e1a9c771de57c0a2e7b69ea3ea578.tar.xz kernel-qcow2-linux-c69d5276704e1a9c771de57c0a2e7b69ea3ea578.zip | |
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 <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_encoder.c | 2 |
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 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); } |