2244 	struct btrfs_ioctl_get_subvol_rootref_args *rootrefs;  in btrfs_ioctl_get_subvol_rootref()  local
2258 	rootrefs = memdup_user(argp, sizeof(*rootrefs));  in btrfs_ioctl_get_subvol_rootref()
2259 	if (IS_ERR(rootrefs)) {  in btrfs_ioctl_get_subvol_rootref()
2261 		return PTR_ERR(rootrefs);  in btrfs_ioctl_get_subvol_rootref()
2267 	key.offset = rootrefs->min_treeid;  in btrfs_ioctl_get_subvol_rootref()
2300 		rootrefs->rootref[found].treeid = key.offset;  in btrfs_ioctl_get_subvol_rootref()
2301 		rootrefs->rootref[found].dirid =  in btrfs_ioctl_get_subvol_rootref()
2318 		rootrefs->num_items = found;  in btrfs_ioctl_get_subvol_rootref()
2321 			rootrefs->min_treeid =  in btrfs_ioctl_get_subvol_rootref()
2322 				rootrefs->rootref[found - 1].treeid + 1;  in btrfs_ioctl_get_subvol_rootref()
2323 		if (copy_to_user(argp, rootrefs, sizeof(*rootrefs)))  in btrfs_ioctl_get_subvol_rootref()
2327 	kfree(rootrefs);  in btrfs_ioctl_get_subvol_rootref()