90 	struct v4l2_subdev *sd, *next;  in v4l2_device_unregister()  local
99 	list_for_each_entry_safe(sd, next, &v4l2_dev->subdevs, list) {  in v4l2_device_unregister()
100 		v4l2_device_unregister_subdev(sd);  in v4l2_device_unregister()
101 		if (sd->flags & V4L2_SUBDEV_FL_IS_I2C)  in v4l2_device_unregister()
102 			v4l2_i2c_subdev_unregister(sd);  in v4l2_device_unregister()
103 		else if (sd->flags & V4L2_SUBDEV_FL_IS_SPI)  in v4l2_device_unregister()
104 			v4l2_spi_subdev_unregister(sd);  in v4l2_device_unregister()
112 				  struct v4l2_subdev *sd, struct module *module)  in __v4l2_device_register_subdev()  argument
117 	if (!v4l2_dev || !sd || sd->v4l2_dev || !sd->name[0])  in __v4l2_device_register_subdev()
127 	sd->owner_v4l2_dev = v4l2_dev->dev && v4l2_dev->dev->driver &&  in __v4l2_device_register_subdev()
130 	if (!sd->owner_v4l2_dev && !try_module_get(module))  in __v4l2_device_register_subdev()
133 	sd->v4l2_dev = v4l2_dev;  in __v4l2_device_register_subdev()
135 	err = v4l2_ctrl_add_handler(v4l2_dev->ctrl_handler, sd->ctrl_handler,  in __v4l2_device_register_subdev()
143 		err = media_device_register_entity(v4l2_dev->mdev, &sd->entity);  in __v4l2_device_register_subdev()
149 	if (sd->internal_ops && sd->internal_ops->registered) {  in __v4l2_device_register_subdev()
150 		err = sd->internal_ops->registered(sd);  in __v4l2_device_register_subdev()
155 	sd->owner = module;  in __v4l2_device_register_subdev()
158 	list_add_tail(&sd->list, &v4l2_dev->subdevs);  in __v4l2_device_register_subdev()
165 	media_device_unregister_entity(&sd->entity);  in __v4l2_device_register_subdev()
168 	if (!sd->owner_v4l2_dev)  in __v4l2_device_register_subdev()
169 		module_put(sd->owner);  in __v4l2_device_register_subdev()
170 	sd->v4l2_dev = NULL;  in __v4l2_device_register_subdev()
175 static void v4l2_subdev_release(struct v4l2_subdev *sd)  in v4l2_subdev_release()  argument
177 	struct module *owner = !sd->owner_v4l2_dev ? sd->owner : NULL;  in v4l2_subdev_release()
179 	if (sd->internal_ops && sd->internal_ops->release)  in v4l2_subdev_release()
180 		sd->internal_ops->release(sd);  in v4l2_subdev_release()
181 	sd->devnode = NULL;  in v4l2_subdev_release()
195 	struct v4l2_subdev *sd;  in __v4l2_device_register_subdev_nodes()  local
201 	list_for_each_entry(sd, &v4l2_dev->subdevs, list) {  in __v4l2_device_register_subdev_nodes()
202 		if (!(sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE))  in __v4l2_device_register_subdev_nodes()
205 		if (sd->devnode)  in __v4l2_device_register_subdev_nodes()
214 		video_set_drvdata(vdev, sd);  in __v4l2_device_register_subdev_nodes()
215 		strscpy(vdev->name, sd->name, sizeof(vdev->name));  in __v4l2_device_register_subdev_nodes()
216 		vdev->dev_parent = sd->dev;  in __v4l2_device_register_subdev_nodes()
220 		vdev->ctrl_handler = sd->ctrl_handler;  in __v4l2_device_register_subdev_nodes()
223 		sd->devnode = vdev;  in __v4l2_device_register_subdev_nodes()
225 					      sd->owner);  in __v4l2_device_register_subdev_nodes()
227 			sd->devnode = NULL;  in __v4l2_device_register_subdev_nodes()
232 		sd->entity.info.dev.major = VIDEO_MAJOR;  in __v4l2_device_register_subdev_nodes()
233 		sd->entity.info.dev.minor = vdev->minor;  in __v4l2_device_register_subdev_nodes()
239 			link = media_create_intf_link(&sd->entity,  in __v4l2_device_register_subdev_nodes()
253 	list_for_each_entry(sd, &v4l2_dev->subdevs, list) {  in __v4l2_device_register_subdev_nodes()
254 		if (!sd->devnode)  in __v4l2_device_register_subdev_nodes()
256 		video_unregister_device(sd->devnode);  in __v4l2_device_register_subdev_nodes()
263 void v4l2_device_unregister_subdev(struct v4l2_subdev *sd)  in v4l2_device_unregister_subdev()  argument
268 	if (sd == NULL || sd->v4l2_dev == NULL)  in v4l2_device_unregister_subdev()
271 	v4l2_dev = sd->v4l2_dev;  in v4l2_device_unregister_subdev()
274 	list_del(&sd->list);  in v4l2_device_unregister_subdev()
277 	if (sd->internal_ops && sd->internal_ops->unregistered)  in v4l2_device_unregister_subdev()
278 		sd->internal_ops->unregistered(sd);  in v4l2_device_unregister_subdev()
279 	sd->v4l2_dev = NULL;  in v4l2_device_unregister_subdev()
287 		media_device_unregister_entity(&sd->entity);  in v4l2_device_unregister_subdev()
290 	if (sd->devnode)  in v4l2_device_unregister_subdev()
291 		video_unregister_device(sd->devnode);  in v4l2_device_unregister_subdev()
293 		v4l2_subdev_release(sd);  in v4l2_device_unregister_subdev()