1 files changed, 3 insertions, 1 deletions

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 0f7c37825fc1..45375b41a2a0 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -177,7 +177,9 @@ extern int unregister_inet6addr_notifier(struct notifier_block *nb);
 static inline struct inet6_dev *
 __in6_dev_get(struct net_device *dev)
 {
-        return rcu_dereference(dev->ip6_ptr);
+        return rcu_dereference_check(dev->ip6_ptr,
+                                     rcu_read_lock_held() ||
+                                     lockdep_rtnl_is_held());
 }
 
 static inline struct inet6_dev *