2256 	struct btrfs_ioctl_get_subvol_rootref_args *rootrefs;  in btrfs_ioctl_get_subvol_rootref()  local
2270 	rootrefs = memdup_user(argp, sizeof(*rootrefs));  in btrfs_ioctl_get_subvol_rootref()
2271 	if (IS_ERR(rootrefs)) {  in btrfs_ioctl_get_subvol_rootref()
2273 		return PTR_ERR(rootrefs);  in btrfs_ioctl_get_subvol_rootref()
2279 	key.offset = rootrefs->min_treeid;  in btrfs_ioctl_get_subvol_rootref()
2312 		rootrefs->rootref[found].treeid = key.offset;  in btrfs_ioctl_get_subvol_rootref()
2313 		rootrefs->rootref[found].dirid =  in btrfs_ioctl_get_subvol_rootref()
2330 		rootrefs->num_items = found;  in btrfs_ioctl_get_subvol_rootref()
2333 			rootrefs->min_treeid =  in btrfs_ioctl_get_subvol_rootref()
2334 				rootrefs->rootref[found - 1].treeid + 1;  in btrfs_ioctl_get_subvol_rootref()
2335 		if (copy_to_user(argp, rootrefs, sizeof(*rootrefs)))  in btrfs_ioctl_get_subvol_rootref()
2339 	kfree(rootrefs);  in btrfs_ioctl_get_subvol_rootref()