diff options
Diffstat (limited to 'net/batman-adv/gateway_client.c')
| -rw-r--r-- | net/batman-adv/gateway_client.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c index 2acd7a6..af128ef 100644 --- a/net/batman-adv/gateway_client.c +++ b/net/batman-adv/gateway_client.c @@ -127,7 +127,7 @@ void gw_election(struct bat_priv *bat_priv) return; curr_gw = gw_get_selected_gw_node(bat_priv); - if (!curr_gw) + if (curr_gw) goto out; rcu_read_lock(); @@ -310,9 +310,13 @@ void gw_node_update(struct bat_priv *bat_priv, struct hlist_node *node; struct gw_node *gw_node, *curr_gw; + /** + * Note: We don't need a NULL check here, since curr_gw never gets + * dereferenced. If curr_gw is NULL we also should not exit as we may + * have this gateway in our list (duplication check!) even though we + * have no currently selected gateway. + */ curr_gw = gw_get_selected_gw_node(bat_priv); - if (!curr_gw) - goto out; rcu_read_lock(); hlist_for_each_entry_rcu(gw_node, node, &bat_priv->gw_list, list) { @@ -350,7 +354,7 @@ deselect: gw_deselect(bat_priv); unlock: rcu_read_unlock(); -out: + if (curr_gw) gw_node_free_ref(curr_gw); } |