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batman-adv: Avoid double freeing of bat_counters 

On errors in batadv_mesh_init(), bat_counters will be freed in both
batadv_mesh_free() and batadv_softif_init_late(). This patch fixes this
by returning earlier from batadv_softif_init_late() in case of errors in
batadv_mesh_init() and by setting bat_counters to NULL after freeing.

Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
This commit is contained in:
Martin Hundebøll 2013-04-17 21:13:16 +02:00 committed by Antonio Quartulli
parent 3ccfc1b1d2
commit f69ae770e7
2 changed files with 2 additions and 0 deletions
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1
net/batman-adv/main.c
View File

@ -181,6 +181,7 @@ void batadv_mesh_free(struct net_device *soft_iface)
batadv_originator_free(bat_priv);
free_percpu(bat_priv->bat_counters);
bat_priv->bat_counters = NULL;
atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
}

1
net/batman-adv/soft-interface.c
View File

@ -505,6 +505,7 @@ unreg_debugfs:
batadv_debugfs_del_meshif(dev);
free_bat_counters:
free_percpu(bat_priv->bat_counters);
bat_priv->bat_counters = NULL;
return ret;
}