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drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c

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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>
This commit is contained in:
Sachin Kamat
2012-11-19 14:50:30 +05:30
committed by Inki Dae
parent 77b1c0362f
commit c69d527670
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/exynos/exynos_drm_encoder.c
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@@ -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 * because the setting for disabling the overlay will be updated
* at vsync. * at vsync.
*/ */
if (overlay_ops->wait_for_vblank) if (overlay_ops && overlay_ops->wait_for_vblank)
overlay_ops->wait_for_vblank(manager->dev); overlay_ops->wait_for_vblank(manager->dev);
} }