From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 27 May 2014 20:33:57 +0000 (+0200)
Subject: mac80211: fix a memory leak on sta rate selection table
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=a882e11977492f18b77072c036b42777b6ba9760;p=linux-edison.git

mac80211: fix a memory leak on sta rate selection table

commit 53d045258ee2e38b1e882617cb0799a04d05f5fa upstream.

If the rate control algorithm uses a selection table, it
is leaked when the station is destroyed - fix that.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Reported-by: Christophe Prévotaux <cprevotaux@nltinc.com>
Fixes: 0d528d85c519 ("mac80211: improve the rate control API")
[add commit log entry, remove pointless NULL check]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 0418777c361..557a5760f9f 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -270,6 +270,7 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
 
 	sta_dbg(sta->sdata, "Destroyed STA %pM\n", sta->sta.addr);
 
+	kfree(rcu_dereference_raw(sta->sta.rates));
 	kfree(sta);
 }