From: Christian Lamparter <chunkeey@web.de>
Date: Sat, 27 Dec 2008 21:19:49 +0000 (+0100)
Subject: mac80211: initialize RC data for all mesh links upon allocation
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b973c31a925c6753d84a100673f6b25546ec8b34;p=linux-beck.git

mac80211: initialize RC data for all mesh links upon allocation

This patch fixes a panic that might occur, if the device is part of a mesh
and tries to send with a higher rate index than "0".

kernel BUG at net/mac80211/rate.c:239!
invalid opcode: 0000 [#1] SMP
[...]
 Call Trace:
 <IRQ> <0> ? invoke_tx_handlers+0x474/0xb57 [mac80211]
 ? __ieee80211_tx_prepare+0x260/0x2a8 [mac80211]
 ? ieee80211_master_start_xmit+0x300/0x43a [mac80211]
 ? __qdisc_run+0xde/0x1da
 ? net_tx_action+0xb4/0x102
 Kernel panic - not syncing: Fatal exception in interrupt

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 929ba542fd72..1159bdb4119c 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -107,6 +107,7 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
 
 	sta->flags = WLAN_STA_AUTHORIZED;
 	sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
+	rate_control_rate_init(sta);
 
 	return sta;
 }