media/mc/mc-device.c

23 #include <media/media-devnode.h>
127 	 * printing the graphviz diagram. So, map them into the devnode
295 			struct media_intf_devnode *devnode;
297 			devnode = intf_to_devnode(intf);
299 			kintf.devnode.major = devnode->major;
300 			kintf.devnode.minor = devnode->minor;
437 	struct media_devnode *devnode = media_devnode_data(filp);
438 	struct media_device *dev = devnode->media_dev;
521 	struct media_devnode *devnode = media_devnode_data(filp);
522 	struct media_device *dev = devnode->media_dev;
558 	struct media_devnode *devnode = to_media_devnode(cd);
559 	struct media_device *mdev = devnode->media_dev;
570 static void media_device_release(struct media_devnode *devnode)
572 	dev_dbg(devnode->parent, "Media device released\n");
717 	struct media_devnode *devnode;
720 	devnode = kzalloc(sizeof(*devnode), GFP_KERNEL);
721 	if (!devnode)
725 	mdev->devnode = devnode;
726 	devnode->fops = &media_device_fops;
727 	devnode->parent = mdev->dev;
728 	devnode->release = media_device_release;
733 	ret = media_devnode_register(mdev, devnode, owner);
735 		/* devnode free is handled in media_devnode_*() */
736 		mdev->devnode = NULL;
740 	ret = device_create_file(&devnode->dev, &dev_attr_model);
742 		/* devnode free is handled in media_devnode_*() */
743 		mdev->devnode = NULL;
744 		media_devnode_unregister_prepare(devnode);
745 		media_devnode_unregister(devnode);
795 	if (!media_devnode_is_registered(mdev->devnode)) {
800 	/* Clear the devnode register bit to avoid races with media dev open */
801 	media_devnode_unregister_prepare(mdev->devnode);
827 	device_remove_file(&mdev->devnode->dev, &dev_attr_model);
828 	media_devnode_unregister(mdev->devnode);
829 	/* devnode free is handled in media_devnode_*() */
830 	mdev->devnode = NULL;