diff options
Diffstat (limited to 'include/net/addrconf.h')
| -rw-r--r-- | include/net/addrconf.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 9e5e95988b9e..a106e8d6bd6e 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -363,8 +363,11 @@ static inline struct inet6_dev *__in6_dev_get_rtnl_net(const struct net_device * static inline struct inet6_dev *__in6_dev_stats_get(const struct net_device *dev, const struct sk_buff *skb) { - if (netif_is_l3_master(dev)) + if (netif_is_l3_master(dev)) { dev = dev_get_by_index_rcu(dev_net(dev), inet6_iif(skb)); + if (!dev) + return NULL; + } return __in6_dev_get(dev); } @@ -437,6 +440,11 @@ static inline void in6_dev_hold(struct inet6_dev *idev) refcount_inc(&idev->refcnt); } +static inline bool in6_dev_hold_safe(struct inet6_dev *idev) +{ + return refcount_inc_not_zero(&idev->refcnt); +} + /* called with rcu_read_lock held */ static inline bool ip6_ignore_linkdown(const struct net_device *dev) { |