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 4.13-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-4.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 813a7e1604eaad1c2792d37d402e1b48b8d0eb3f Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Date: Tue, 11 Jul 2017 16:33:03 +0200
Subject: drm/nouveau: Fix error handling in nv50_disp_atomic_commit
From: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
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.
Fixes: 839ca903f12e ("drm/nouveau/kms/nv50: transition to atomic interfaces internally")
Cc: Ben Skeggs <bskeggs@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: nouveau@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/20170711143314.2148-2-maarten.lankhorst@xxxxxxxxxxxxxxx
Reviewed-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
[mlankhorst: Use if (ret) to remove the goto in success case.]
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nv50_display.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -4134,7 +4134,7 @@ 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) {
@@ -4162,7 +4162,7 @@ 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;
@@ -4174,6 +4174,9 @@ 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 maarten.lankhorst@xxxxxxxxxxxxxxx are
queue-4.13/drm-dp-mst-handle-errors-from-drm_atomic_get_private_obj_state-correctly.patch
queue-4.13/drm-nouveau-fix-error-handling-in-nv50_disp_atomic_commit.patch