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;