batman-adv: select an internet gateway if none was chosen

This is a regression introduced by: 2265c141086474bbae55a5bb3afa1ebb78ccaa7c
("batman-adv: gateway election code refactoring")

Reported-by: Nicolás Echániz <nicoechaniz@codigosur.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index b421cc4..fc866f2 100644 (file)
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -200,11 +200,11 @@ void batadv_gw_election(struct batadv_priv *bat_priv)
        if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_CLIENT)
                goto out;
 
-       if (!batadv_atomic_dec_not_zero(&bat_priv->gw_reselect))
-               goto out;
-
        curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
 
+       if (!batadv_atomic_dec_not_zero(&bat_priv->gw_reselect) && curr_gw)
+               goto out;
+
        next_gw = batadv_gw_get_best_gw_node(bat_priv);
 
        if (curr_gw == next_gw)