3.19.8-ckt14 -stable review patch. If anyone has any objections, please let me
know.
---8<------------------------------------------------------------
From: Ben Skeggs <bske...@redhat.com>
commit 0a882cadbc63fd2da3994af7115b4ada2fcbd638 upstream.
fdo#93634
Signed-off-by: Ben Skeggs <bske...@redhat.com>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
drivers/gpu/drm/nouveau/nouveau_connector.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c
b/drivers/gpu/drm/nouveau/nouveau_connector.c
index c8ac948..a088c96 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -952,10 +952,13 @@ nouveau_connector_hotplug(struct nvif_notify *notify)
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);
}
--
1.9.1
