From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 4 Dec 2009 22:25:43 +0000 (-0800)
Subject: mac80211: fix reorder buffer release
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d29cecda036f251aee4947f47eea0fe9ed8cc931;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

mac80211: fix reorder buffer release

My patch "mac80211: correctly place aMPDU RX reorder code"
uses an skb queue for MPDUs that were released from the
buffer. I intentially didn't initialise and use the skb
queue's spinlock, but in this place forgot that the code
variant that doesn't touch the spinlock is needed.

Thanks to Christian Lamparter for quickly spotting the
bug in the backtrace Reinette reported.

Reported-by: Reinette Chatre <reinette.chatre@intel.com>
Bug-identified-by: Christian Lamparter <chunkeey@googlemail.com>
Tested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 4ed60ae81b99..f237df408378 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -570,7 +570,7 @@ static void ieee80211_release_reorder_frame(struct ieee80211_hw *hw,
 		rate = &sband->bitrates[status->rate_idx];
 	tid_agg_rx->stored_mpdu_num--;
 	tid_agg_rx->reorder_buf[index] = NULL;
-	skb_queue_tail(frames, skb);
+	__skb_queue_tail(frames, skb);
 
 no_frame:
 	tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);