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authorMartin Hundebøll <martin@hundeboll.net>2013-04-17 21:13:16 +0200
committerAntonio Quartulli <ordex@autistici.org>2013-05-21 21:34:36 +0200
commitf69ae770e74df420fbcf93aae81b30a5dcc73b7d (patch)
tree366080c1947e6650815e56c45f6ba53fe12a1cad /net/batman-adv
parent3ccfc1b1d2fa78f8ece83646027982916fcc794b (diff)
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>
Diffstat (limited to 'net/batman-adv')
-rw-r--r--net/batman-adv/main.c1
-rw-r--r--net/batman-adv/soft-interface.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 1240f07ad31d..51aafd669cbb 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -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);
}
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 6f20d339e33a..819dfb006cdf 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -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;
}

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