diff options
Diffstat (limited to 'net/bridge/br_netlink.c')
| -rw-r--r-- | net/bridge/br_netlink.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index c64dcad11662..c3186198d46d 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -34,7 +34,7 @@ static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg, pvid = br_get_pvid(vg); /* Count number of vlan infos */ - list_for_each_entry(v, &vg->vlan_list, vlist) { + list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { flags = 0; /* only a context, bridge vlan not activated */ if (!br_vlan_should_use(v)) @@ -76,13 +76,19 @@ initvars: static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg, u32 filter_mask) { + int num_vlans; + if (!vg) return 0; if (filter_mask & RTEXT_FILTER_BRVLAN) return vg->num_vlans; - return __get_num_vlan_infos(vg, filter_mask); + rcu_read_lock(); + num_vlans = __get_num_vlan_infos(vg, filter_mask); + rcu_read_unlock(); + + return num_vlans; } static size_t br_get_link_af_size_filtered(const struct net_device *dev, |