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drm/mediatek: Handle drm_atomic_helper_swap_state failure

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drm_atomic_helper_swap_state() will be changed to interruptible waiting
in the next few commits, so all drivers have to be changed to handling
failure.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Link: http://patchwork.freedesktop.org/patch/msgid/20170711143314.2148-7-maarten.lankhorst@linux.intel.com
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Maarten Lankhorst 2017-07-11 16:33:08 +02:00 committed by Daniel Vetter
parent 0806f4ee06
commit 76cc07189d
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/mediatek/mtk_drm_drv.c
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@ -109,7 +109,12 @@ static int mtk_atomic_commit(struct drm_device *drm,
mutex_lock(&private->commit.lock);
flush_work(&private->commit.work);
drm_atomic_helper_swap_state(state, true);
ret = drm_atomic_helper_swap_state(state, true);
if (ret) {
mutex_unlock(&private->commit.lock);
drm_atomic_helper_cleanup_planes(drm, state);
return ret;
}
drm_atomic_state_get(state);
if (async)