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mac80211: fix offchannel TX cookie matching

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When I introduced in-kernel off-channel TX I
introduced a bug -- the work can't be canceled
again because the code clear the skb pointer.
Fix this by keeping track separately of whether
TX status has already been reported.

Cc: stable@kernel.org [2.6.38+]
Reported-by: Jouni Malinen <j@w1.fi>
Tested-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2011-10-04 18:27:10 +02:00
committed by John W. Linville
parent af4dc88c56
commit 28a1bcdb57
4 changed files with 4 additions and 3 deletions
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2
net/mac80211/status.c
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@@ -429,7 +429,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
continue;
if (wk->offchan_tx.frame != skb)
continue;
wk->offchan_tx.frame = NULL;
wk->offchan_tx.status = true;
break;
}
rcu_read_unlock();