This is a note to let you know that I've just added the patch titled
drm/nouveau/kms: take mode_config mutex in connector hotplug path
to the 4.4-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-kms-take-mode_config-mutex-in-connector-hotplug-path.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0a882cadbc63fd2da3994af7115b4ada2fcbd638 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@xxxxxxxxxx>
Date: Fri, 8 Jan 2016 08:56:51 +1000
Subject: drm/nouveau/kms: take mode_config mutex in connector hotplug path
From: Ben Skeggs <bskeggs@xxxxxxxxxx>
commit 0a882cadbc63fd2da3994af7115b4ada2fcbd638 upstream.
fdo#93634
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_connector.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -969,10 +969,13 @@ nouveau_connector_hotplug(struct nvif_no
NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
+ mutex_lock(&drm->dev->mode_config.mutex);
if (plugged)
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
else
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+ mutex_unlock(&drm->dev->mode_config.mutex);
+
drm_helper_hpd_irq_event(connector->dev);
}
Patches currently in stable-queue which might be from bskeggs@xxxxxxxxxx are
queue-4.4/drm-nouveau-platform-fix-deferred-probe.patch
queue-4.4/drm-nouveau-kms-take-mode_config-mutex-in-connector-hotplug-path.patch
queue-4.4/drm-nouveau-display-enable-vblank-irqs-after-display-engine-is-on-again.patch
queue-4.4/drm-nouveau-disp-dp-ensure-sink-is-powered-up-before-attempting-link-training.patch
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