As we now can call drm_connector_unregister() multiple times, provide a failsafe unregister for a connector when cleaning it up.

v2: Add a WARN to catch any connectors that are still visible to userspace when we come to destoy them.

Signed-off-by: Chris Wilson chris@chris-wilson.co.uk Cc: Dave Airlie airlied@redhat.com Cc: dri-devel@lists.freedesktop.org Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/drm_crtc.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index e01c0fcf26cc..c15cb43be78e 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -966,6 +966,12 @@ void drm_connector_cleanup(struct drm_connector *connector) struct drm_device *dev = connector->dev; struct drm_display_mode *mode, *t;

+ /* The connector should have been removed from userspace long before + * it is finally destroyed. + */ + if (WARN_ON(connector->registered)) + drm_connector_unregister(connector); + if (connector->tile_group) { drm_mode_put_tile_group(dev, connector->tile_group); connector->tile_group = NULL;