From: Daniel Vetter <daniel.vetter@xxxxxxxx> This patch has been added to the 4.1 stable tree. If you have any objections, please let us know. =============== [ Upstream commit 2ee6bcdcfa4d8b56b20bc6308cd5f9bced5b5324 ] Similar with the i915 take all modeset locks for mst hotplug. This is needed to make sure radeon holds both mode_config.mutex and mode_config.connection_mutex when updating the connector_list, which is the new (interim) locking regime we want for that. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> --- drivers/gpu/drm/radeon/radeon_dp_mst.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c index 4298613..c9ff4cf 100644 --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c @@ -287,9 +287,9 @@ static struct drm_connector *radeon_dp_add_mst_connector(struct drm_dp_mst_topol drm_mode_connector_set_path_property(connector, pathprop); drm_reinit_primary_mode_group(dev); - mutex_lock(&dev->mode_config.mutex); + drm_modeset_lock_all(dev); radeon_fb_add_connector(rdev, connector); - mutex_unlock(&dev->mode_config.mutex); + drm_modeset_unlock_all(dev); drm_connector_register(connector); return connector; @@ -304,12 +304,12 @@ static void radeon_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr, drm_connector_unregister(connector); /* need to nuke the connector */ - mutex_lock(&dev->mode_config.mutex); + drm_modeset_lock_all(dev); /* dpms off */ radeon_fb_remove_connector(rdev, connector); drm_connector_cleanup(connector); - mutex_unlock(&dev->mode_config.mutex); + drm_modeset_unlock_all(dev); drm_reinit_primary_mode_group(dev); -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html