[B.A.T.M.A.N.] [PATCH] batman-adv: Fix check of retrieved orig_gw in batadv_v_gw_is_eligible

[Sven Eckelmann]

The batadv_v_gw_is_eligible function already assumes that orig_node is not
NULL. But batadv_gw_node_get may have failed to find the originator. It
must therefore be checked whether the batadv_gw_node_get failed and not
whether orig_node is NULL to detect this error.

Fixes: 80b2d47be2c7 ("batman-adv: B.A.T.M.A.N. V - implement GW selection 
logic")
Signed-off-by: Sven Eckelmann <sven.eckelm...@openmesh.com>
---
Cc: Antonio Quartulli <a...@unstable.cc>
---
 net/batman-adv/bat_v.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
index 
341ceab8338d829d14a48831bef805bb04af0a8f..e0e2bfcd6b3efd73f2567d23ce304951c9e2c3f0
 100644
--- a/net/batman-adv/bat_v.c
+++ b/net/batman-adv/bat_v.c
@@ -814,7 +814,7 @@ static bool batadv_v_gw_is_eligible(struct batadv_priv 
*bat_priv,
        }
 
        orig_gw = batadv_gw_node_get(bat_priv, orig_node);
-       if (!orig_node)
+       if (!orig_gw)
                goto out;
 
        if (batadv_v_gw_throughput_get(orig_gw, &orig_throughput) < 0)