diff --git a/sys/net/if.c b/sys/net/if.c
index 395995d..dd24ed7 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -560,7 +560,9 @@ if_rele(struct ifnet *ifp)
 void
 ifq_init(struct ifaltq *ifq, struct ifnet *ifp)
 {
-	
+
+	memset(ifq, 0, sizeof(*ifq));
+
 	mtx_init(&ifq->ifq_mtx, ifp->if_xname, "if send queue", MTX_DEF);
 
 	if (ifq->ifq_maxlen == 0) 
@@ -576,6 +578,14 @@ ifq_init(struct ifaltq *ifq, struct ifnet *ifp)
 void
 ifq_delete(struct ifaltq *ifq)
 {
+	struct mbuf *m;
+
+	while (1) {
+		IF_DEQUEUE(ifq, m);
+		if (m == NULL)
+			break;
+		m_freem(m);
+	}
 	mtx_destroy(&ifq->ifq_mtx);
 }