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drm/radeon: Take all modeset locks for DP MST hotplug

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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@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This commit is contained in:
Daniel Vetter 2015-07-09 23:44:32 +02:00
parent 8bb4da1df5
commit 2ee6bcdcfa
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/radeon/radeon_dp_mst.c
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@ -286,9 +286,9 @@ 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;
@ -303,12 +303,12 @@ 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);