Index: if_lagg.c
===================================================================
--- if_lagg.c	(revision 280234)
+++ if_lagg.c	(working copy)
@@ -1661,7 +1661,8 @@ lagg_input(struct ifnet *ifp, struct mbuf *m)
 	LAGG_RLOCK(sc, &tracker);
 	if ((scifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
 	    (lp->lp_flags & LAGG_PORT_DISABLED) ||
-	    sc->sc_proto == LAGG_PROTO_NONE) {
+	    sc->sc_proto == LAGG_PROTO_NONE ||
+	    lp->lp_detaching != 0) {
 		LAGG_RUNLOCK(sc, &tracker);
 		m_freem(m);
 		return (NULL);
@@ -1668,9 +1669,7 @@ lagg_input(struct ifnet *ifp, struct mbuf *m)
 	}
 
 	ETHER_BPF_MTAP(scifp, m);
-
-	m = (lp->lp_detaching == 0) ? lagg_proto_input(sc, lp, m) : NULL;
-
+	m = lagg_proto_input(sc, lp, m);
 	if (m != NULL) {
 		if (scifp->if_flags & IFF_MONITOR) {
 			m_freem(m);