[3.11.y.z extended stable] Patch "mac80211: fix a memory leak on sta rate selection table" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    mac80211: fix a memory leak on sta rate selection table

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

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>From 7a974d715a6f8532da2ea604498639d59e334220 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd at openwrt.org>
Date: Tue, 27 May 2014 22:33:57 +0200
Subject: mac80211: fix a memory leak on sta rate selection table
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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 at openwrt.org>
Reported-by: Christophe Prévotaux <cprevotaux at 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 at intel.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 net/mac80211/sta_info.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index db41c190e76d..37025725c369 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -271,6 +271,7 @@ 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);
 }

--
1.9.1