59 	struct media_devnode *devnode = to_media_devnode(cd);  in media_devnode_release()  local
63 	clear_bit(devnode->minor, media_devnode_nums);  in media_devnode_release()
67 	if (devnode->release)  in media_devnode_release()
68 		devnode->release(devnode);  in media_devnode_release()
70 	kfree(devnode);  in media_devnode_release()
81 	struct media_devnode *devnode = media_devnode_data(filp);  in media_read()  local
83 	if (!devnode->fops->read)  in media_read()
85 	if (!media_devnode_is_registered(devnode))  in media_read()
87 	return devnode->fops->read(filp, buf, sz, off);  in media_read()
93 	struct media_devnode *devnode = media_devnode_data(filp);  in media_write()  local
95 	if (!devnode->fops->write)  in media_write()
97 	if (!media_devnode_is_registered(devnode))  in media_write()
99 	return devnode->fops->write(filp, buf, sz, off);  in media_write()
105 	struct media_devnode *devnode = media_devnode_data(filp);  in media_poll()  local
107 	if (!media_devnode_is_registered(devnode))  in media_poll()
109 	if (!devnode->fops->poll)  in media_poll()
111 	return devnode->fops->poll(filp, poll);  in media_poll()
119 	struct media_devnode *devnode = media_devnode_data(filp);  in __media_ioctl()  local
124 	if (!media_devnode_is_registered(devnode))  in __media_ioctl()
132 	struct media_devnode *devnode = media_devnode_data(filp);  in media_ioctl()  local
134 	return __media_ioctl(filp, cmd, arg, devnode->fops->ioctl);  in media_ioctl()
142 	struct media_devnode *devnode = media_devnode_data(filp);  in media_compat_ioctl()  local
144 	return __media_ioctl(filp, cmd, arg, devnode->fops->compat_ioctl);  in media_compat_ioctl()
152 	struct media_devnode *devnode;  in media_open()  local
162 	devnode = container_of(inode->i_cdev, struct media_devnode, cdev);  in media_open()
165 	if (!media_devnode_is_registered(devnode)) {  in media_open()
170 	get_device(&devnode->dev);  in media_open()
173 	filp->private_data = devnode;  in media_open()
175 	if (devnode->fops->open) {  in media_open()
176 		ret = devnode->fops->open(filp);  in media_open()
178 			put_device(&devnode->dev);  in media_open()
190 	struct media_devnode *devnode = media_devnode_data(filp);  in media_release()  local
192 	if (devnode->fops->release)  in media_release()
193 		devnode->fops->release(filp);  in media_release()
199 	put_device(&devnode->dev);  in media_release()
220 					struct media_devnode *devnode,  in media_devnode_register()  argument
232 		kfree(devnode);  in media_devnode_register()
239 	devnode->minor = minor;  in media_devnode_register()
240 	devnode->media_dev = mdev;  in media_devnode_register()
243 	devnode->dev.bus = &media_bus_type;  in media_devnode_register()
244 	devnode->dev.devt = MKDEV(MAJOR(media_dev_t), devnode->minor);  in media_devnode_register()
245 	devnode->dev.release = media_devnode_release;  in media_devnode_register()
246 	if (devnode->parent)  in media_devnode_register()
247 		devnode->dev.parent = devnode->parent;  in media_devnode_register()
248 	dev_set_name(&devnode->dev, "media%d", devnode->minor);  in media_devnode_register()
249 	device_initialize(&devnode->dev);  in media_devnode_register()
252 	cdev_init(&devnode->cdev, &media_devnode_fops);  in media_devnode_register()
253 	devnode->cdev.owner = owner;  in media_devnode_register()
256 	ret = cdev_device_add(&devnode->cdev, &devnode->dev);  in media_devnode_register()
263 	set_bit(MEDIA_FLAG_REGISTERED, &devnode->flags);  in media_devnode_register()
269 	clear_bit(devnode->minor, media_devnode_nums);  in media_devnode_register()
270 	devnode->media_dev = NULL;  in media_devnode_register()
273 	put_device(&devnode->dev);  in media_devnode_register()
277 void media_devnode_unregister_prepare(struct media_devnode *devnode)  in media_devnode_unregister_prepare()  argument
280 	if (!media_devnode_is_registered(devnode))  in media_devnode_unregister_prepare()
284 	clear_bit(MEDIA_FLAG_REGISTERED, &devnode->flags);  in media_devnode_unregister_prepare()
288 void media_devnode_unregister(struct media_devnode *devnode)  in media_devnode_unregister()  argument
292 	cdev_device_del(&devnode->cdev, &devnode->dev);  in media_devnode_unregister()
294 	devnode->media_dev = NULL;  in media_devnode_unregister()
295 	put_device(&devnode->dev);  in media_devnode_unregister()