Index: sys/nfs/krpc_subr.c
===================================================================
--- sys/nfs/krpc_subr.c
+++ sys/nfs/krpc_subr.c
@@ -167,8 +167,10 @@
 	sin->sin_port = htons(PMAPPORT);
 	error = krpc_call(sin, PMAPPROG, PMAPVERS,
 					  PMAPPROC_GETPORT, &m, NULL, td);
-	if (error)
+	if (error) {
+		m_freem(m);
 		return error;
+	}
 
 	if (m->m_len < sizeof(*rdata)) {
 		m = m_pullup(m, sizeof(*rdata));