--- src/sys/net/ifq_var.h	2006/05/21 03:43:45	1.8
+++ src/sys/net/ifq_var.h	2007/08/21 19:21:54	1.9
@@ -153,7 +153,10 @@ ifq_poll(struct ifaltq *_ifq)
 static __inline void
 ifq_purge(struct ifaltq *_ifq)
 {
-	(*_ifq->altq_request)(_ifq, ALTRQ_PURGE, NULL);
+	if (ifq_is_enabled(_ifq))
+		(*_ifq->altq_request)(_ifq, ALTRQ_PURGE, NULL);
+	else
+		IF_DRAIN(_ifq);
 }
 
 /*