diff options
Diffstat (limited to 'drivers/gpu/drm/drm_mode_object.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mode_object.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index 6a23e36ed4fe..35c2719407a8 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -224,12 +224,26 @@ EXPORT_SYMBOL(drm_mode_object_get); * This attaches the given property to the modeset object with the given initial * value. Currently this function cannot fail since the properties are stored in * a statically sized array. + * + * Note that all properties must be attached before the object itself is + * registered and accessible from userspace. */ void drm_object_attach_property(struct drm_mode_object *obj, struct drm_property *property, uint64_t init_val) { int count = obj->properties->count; + struct drm_device *dev = property->dev; + + + if (obj->type == DRM_MODE_OBJECT_CONNECTOR) { + struct drm_connector *connector = obj_to_connector(obj); + + WARN_ON(!dev->driver->load && + connector->registration_state == DRM_CONNECTOR_REGISTERED); + } else { + WARN_ON(!dev->driver->load && dev->registered); + } if (count == DRM_OBJECT_MAX_PROPERTY) { WARN(1, "Failed to attach object property (type: 0x%x). Please " |