net_sched: reset pointers to tcf blocks in classful qdiscs' destructors

[karo-tx-linux.git] / net / sched / sch_atm.c

diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 572fe2584e48c81dbf58d90ce9d6a4ae68d2a385..c403c87aff7a44bccfdd5f07e2e00ea0698a5c90 100644 (file)
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -572,8 +572,10 @@ static void atm_tc_destroy(struct Qdisc *sch)
        struct atm_flow_data *flow, *tmp;
 
        pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
-       list_for_each_entry(flow, &p->flows, list)
+       list_for_each_entry(flow, &p->flows, list) {
                tcf_block_put(flow->block);
+               flow->block = NULL;
+       }
 
        list_for_each_entry_safe(flow, tmp, &p->flows, list) {
                if (flow->ref > 1)