net-sched: change tcf_destroy_chain() to clear start of filter list

Pass double tcf_proto pointers to tcf_destroy_chain() to make it
clear the start of the filter list for more consistency.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 3 deletions

diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 335273416384..8e5f70ba3a15 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -160,7 +160,7 @@ static void atm_tc_put(struct Qdisc *sch, unsigned long cl)
         *prev = flow->next;
         pr_debug("atm_tc_put: qdisc %p\n", flow->q);
         qdisc_destroy(flow->q);
-        tcf_destroy_chain(flow->filter_list);
+        tcf_destroy_chain(&flow->filter_list);
         if (flow->sock) {
                 pr_debug("atm_tc_put: f_count %d\n",
                         file_count(flow->sock->file));
@@ -588,8 +588,7 @@ static void atm_tc_destroy(struct Qdisc *sch)
         pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
         /* races ? */
         while ((flow = p->flows)) {
-                tcf_destroy_chain(flow->filter_list);
-                flow->filter_list = NULL;
+                tcf_destroy_chain(&flow->filter_list);
                 if (flow->ref > 1)
                         printk(KERN_ERR "atm_destroy: %p->ref = %d\n", flow,
                                flow->ref);