diff mbox series

[2/2] drm/atomic-helper: WARN if fake_commit->hw_done is not completed as expected

Message ID 20181122143412.11655-2-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series [1/2] drm/atomic-helper: Complete fake_commit->flip_done potentially earlier | expand

Commit Message

Ville Syrjälä Nov. 22, 2018, 2:34 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

For real commits we WARN if ->hw_done hasn't been completed by the time
drm_atomic_helper_commit_cleanup_done() is called. Let's do the same for
the fake commit.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/drm_atomic_helper.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 47398662b895..bc9fc9665614 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -2220,8 +2220,10 @@  void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *old_state)
 		spin_unlock(&crtc->commit_lock);
 	}
 
-	if (old_state->fake_commit)
+	if (old_state->fake_commit) {
 		complete_all(&old_state->fake_commit->cleanup_done);
+		WARN_ON(!try_wait_for_completion(&old_state->fake_commit->hw_done));
+	}
 }
 EXPORT_SYMBOL(drm_atomic_helper_commit_cleanup_done);