This is a note to let you know that I've just added the patch titled
ath9k: fix key allocation error handling for powersave keys
to the 3.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ath9k-fix-key-allocation-error-handling-for-powersave-keys.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4ef69d0394cba8caa9f75d3f2e53429bfb8b3045 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@xxxxxxxxxxx>
Date: Sat, 27 Apr 2013 11:47:01 +0200
Subject: ath9k: fix key allocation error handling for powersave keys
From: Felix Fietkau <nbd@xxxxxxxxxxx>
commit 4ef69d0394cba8caa9f75d3f2e53429bfb8b3045 upstream.
If no keycache slots are available, ath_key_config can return -ENOSPC.
If the key index is not checked for errors, it can lead to logspam that
looks like this: "ath: wiphy0: keyreset: keycache entry 228 out of range"
This can cause follow-up errors if the invalid keycache index gets
used for tx.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/main.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1308,6 +1308,7 @@ static int ath9k_sta_add(struct ieee8021
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_node *an = (struct ath_node *) sta->drv_priv;
struct ieee80211_key_conf ps_key = { };
+ int key;
ath_node_attach(sc, sta, vif);
@@ -1315,7 +1316,9 @@ static int ath9k_sta_add(struct ieee8021
vif->type != NL80211_IFTYPE_AP_VLAN)
return 0;
- an->ps_key = ath_key_config(common, vif, sta, &ps_key);
+ key = ath_key_config(common, vif, sta, &ps_key);
+ if (key > 0)
+ an->ps_key = key;
return 0;
}
@@ -1332,6 +1335,7 @@ static void ath9k_del_ps_key(struct ath_
return;
ath_key_delete(common, &ps_key);
+ an->ps_key = 0;
}
static int ath9k_sta_remove(struct ieee80211_hw *hw,
Patches currently in stable-queue which might be from nbd@xxxxxxxxxxx are
queue-3.9/ath9k-fix-key-allocation-error-handling-for-powersave-keys.patch
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