Eliminate a dereference after pool_put when an 
inactive/no-longer referenced table is destroyed 
in pfr_setflags_ktable

Chris Pascoe 2004/06/11

Index: pf_table.c
===================================================================
RCS file: /cvs/src/sys/net/pf_table.c,v
retrieving revision 1.55
diff -u -r1.55 pf_table.c
--- pf_table.c	7 Jun 2004 13:16:19 -0000	1.55
+++ pf_table.c	11 Jun 2004 04:14:02 -0000
@@ -1730,10 +1730,12 @@
 void
 pfr_setflags_ktables(struct pfr_ktableworkq *workq)
 {
-	struct pfr_ktable	*p;
+	struct pfr_ktable	*p, *q;
 
-	SLIST_FOREACH(p, workq, pfrkt_workq)
+	for (p = SLIST_FIRST(workq); p; p = q) {
+		q = SLIST_NEXT(p, pfrkt_workq);
 		pfr_setflags_ktable(p, p->pfrkt_nflags);
+	}
 }
 
 void