2833 	struct btrfs_ioctl_get_subvol_rootref_args *rootrefs;  in btrfs_ioctl_get_subvol_rootref()  local
2849 	rootrefs = memdup_user(argp, sizeof(*rootrefs));  in btrfs_ioctl_get_subvol_rootref()
2850 	if (IS_ERR(rootrefs)) {  in btrfs_ioctl_get_subvol_rootref()
2852 		return PTR_ERR(rootrefs);  in btrfs_ioctl_get_subvol_rootref()
2861 	key.offset = rootrefs->min_treeid;  in btrfs_ioctl_get_subvol_rootref()
2893 		rootrefs->rootref[found].treeid = key.offset;  in btrfs_ioctl_get_subvol_rootref()
2894 		rootrefs->rootref[found].dirid =  in btrfs_ioctl_get_subvol_rootref()
2911 		rootrefs->num_items = found;  in btrfs_ioctl_get_subvol_rootref()
2914 			rootrefs->min_treeid =  in btrfs_ioctl_get_subvol_rootref()
2915 				rootrefs->rootref[found - 1].treeid + 1;  in btrfs_ioctl_get_subvol_rootref()
2916 		if (copy_to_user(argp, rootrefs, sizeof(*rootrefs)))  in btrfs_ioctl_get_subvol_rootref()
2920 	kfree(rootrefs);  in btrfs_ioctl_get_subvol_rootref()