Index: if_spppsubr.c
===================================================================
RCS file: /cvs/src/sys/net/if_spppsubr.c,v
retrieving revision 1.146
diff -u -p -r1.146 if_spppsubr.c
--- if_spppsubr.c	11 Nov 2015 01:49:17 -0000	1.146
+++ if_spppsubr.c	20 Nov 2015 03:46:10 -0000
@@ -997,14 +997,15 @@ sppp_cp_send(struct sppp *sp, u_short pr
 			sppp_print_bytes ((u_char*) (lh+1), len);
 		addlog(">\n");
 	}
+
+	len = m->m_pkthdr.len + sp->pp_framebytes;
 	if (mq_enqueue(&sp->pp_cpq, m) != 0) {
-		++ifp->if_oerrors;
-		m = NULL;
+		ifp->if_oerrors++;
+		return;
 	}
-	if (!(ifp->if_flags & IFF_OACTIVE))
-		(*ifp->if_start) (ifp);
-	if (m != NULL)
-		ifp->if_obytes += m->m_pkthdr.len + sp->pp_framebytes;
+
+	ifp->if_obytes += len;
+	if_start(ifp);
 }
 
 /*
@@ -4101,14 +4102,15 @@ sppp_auth_send(const struct cp *cp, stru
 			sppp_print_bytes((u_char*) (lh+1), len);
 		addlog(">\n");
 	}
+
+	len = m->m_pkthdr.len + sp->pp_framebytes;
 	if (mq_enqueue(&sp->pp_cpq, m) != 0) {
-		++ifp->if_oerrors;
-		m = NULL;
+		ifp->if_oerrors++;
+		return;
 	}
-	if (! (ifp->if_flags & IFF_OACTIVE))
-		(*ifp->if_start) (ifp);
-	if (m != NULL)
-		ifp->if_obytes += m->m_pkthdr.len + sp->pp_framebytes;
+
+	ifp->if_obytes += len;
+	if_start(ifp);
 }
 
 /*