diff options
Diffstat (limited to 'drivers/gpu/drm/drm_plane_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_plane_helper.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c index d966afa7ecae..458d9bf09209 100644 --- a/drivers/gpu/drm/drm_plane_helper.c +++ b/drivers/gpu/drm/drm_plane_helper.c @@ -54,6 +54,13 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc, struct drm_connector *connector; int count = 0; + /* + * Note: Once we change the plane hooks to more fine-grained locking we + * need to grab the connection_mutex here to be able to make these + * checks. + */ + WARN_ON(!mutex_is_locked(&dev->mode_config.connection_mutex)); + list_for_each_entry(connector, &dev->mode_config.connector_list, head) if (connector->encoder && connector->encoder->crtc == crtc) { if (connector_list != NULL && count < num_connectors) |