Index: net/ifq_var.h
===================================================================
RCS file: /home/dcvs/src/sys/net/ifq_var.h,v
retrieving revision 1.8
diff -u -p -r1.8 ifq_var.h
--- net/ifq_var.h	21 May 2006 03:43:45 -0000	1.8
+++ net/ifq_var.h	17 Jan 2007 02:55:43 -0000
@@ -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);
 }
 
 /*