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-rw-r--r--net/sched/act_mirred.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 4f912c0e225b..eb48306033d9 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -218,10 +218,12 @@ static int mirred_device_event(struct notifier_block *unused,
if (event == NETDEV_UNREGISTER)
list_for_each_entry(m, &mirred_list, tcfm_list) {
+ spin_lock_bh(&m->tcf_lock);
if (m->tcfm_dev == dev) {
dev_put(dev);
m->tcfm_dev = NULL;
}
+ spin_unlock_bh(&m->tcf_lock);
}
return NOTIFY_DONE;