Patch "drm/nouveau: Fix error handling in nv50_disp_atomic_commit" has been added to the 4.12-stable tree

This is a note to let you know that I've just added the patch titled

drm/nouveau: Fix error handling in nv50_disp_atomic_commit

to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-nouveau-fix-error-handling-in-nv50_disp_atomic_commit.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Maarten Lankhorst <[email protected]>
Date: Tue, 11 Jul 2017 16:33:03 +0200
Subject: drm/nouveau: Fix error handling in nv50_disp_atomic_commit

From: Maarten Lankhorst <[email protected]>

commit 813a7e1604eaad1c2792d37d402e1b48b8d0eb3f upstream.

Make it more clear that post commit return ret is really return 0,

and add a missing drm_atomic_helper_cleanup_planes when drm_atomic_helper_wait_for_fences fails.

---
 drivers/gpu/drm/nouveau/nv50_display.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

@@ -4091,7 +4091,7 @@ nv50_disp_atomic_commit(struct drm_devic
 	if (!nonblock) {
 		ret = drm_atomic_helper_wait_for_fences(dev, state, true);
 		if (ret)
-			goto done;
+			goto err_cleanup;
 	}
 
 	for_each_plane_in_state(state, plane, plane_state, i) {

@@ -4119,7 +4119,7 @@ nv50_disp_atomic_commit(struct drm_devic
 		if (crtc->state->enable) {
 			if (!drm->have_disp_power_ref) {
 				drm->have_disp_power_ref = true;
-				return ret;
+				return 0;
 			}
 			active = true;
 			break;

@@ -4131,6 +4131,9 @@ nv50_disp_atomic_commit(struct drm_devic
 		drm->have_disp_power_ref = false;
 	}
 
+err_cleanup:
+	if (ret)
+		drm_atomic_helper_cleanup_planes(dev, state);
 done:
 	pm_runtime_put_autosuspend(dev->dev);
 	return ret;

Patches currently in stable-queue which might be from [email protected] are

queue-4.12/drm-nouveau-fix-error-handling-in-nv50_disp_atomic_commit.patch