NFSD: Take care the return value from nfsd4_encode_stateid

Signed-off-by: Kinglong Mee <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
Signed-off-by: J. Bruce Fields <[e-mail]>

fs/nfsd/nfs4xdr.c

···
 		return nfserr_resource;
 	*p++ = cpu_to_be32(lrp->lrs_present);
 	if (lrp->lrs_present)
-		nfsd4_encode_stateid(xdr, &lrp->lr_sid);
+		return nfsd4_encode_stateid(xdr, &lrp->lr_sid);
 	return nfs_ok;
 }
 #endif /* CONFIG_NFSD_PNFS */