ath9k: fix another buffer leak in the aggregation code

SVN-Revision: 22360

package/mac80211/patches/520-ath9k_leak_fix.patch

@@ -0,0 +1,32 @@
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -518,6 +518,14 @@ static void ath_tx_complete_aggr(struct 
+ 		bf = bf_next;
+ 	}
+ 
++	/* prepend un-acked frames to the beginning of the pending frame queue */
++	if (!list_empty(&bf_pending)) {
++		spin_lock_bh(&txq->axq_lock);
++		list_splice(&bf_pending, &tid->buf_q);
++		ath_tx_queue_tid(txq, tid);
++		spin_unlock_bh(&txq->axq_lock);
++	}
++
+ 	if (tid->state & AGGR_CLEANUP) {
+ 		if (tid->baw_head == tid->baw_tail) {
+ 			tid->state &= ~AGGR_ADDBA_COMPLETE;
+@@ -530,14 +538,6 @@ static void ath_tx_complete_aggr(struct 
+ 		return;
+ 	}
+ 
+-	/* prepend un-acked frames to the beginning of the pending frame queue */
+-	if (!list_empty(&bf_pending)) {
+-		spin_lock_bh(&txq->axq_lock);
+-		list_splice(&bf_pending, &tid->buf_q);
+-		ath_tx_queue_tid(txq, tid);
+-		spin_unlock_bh(&txq->axq_lock);
+-	}
+-
+ 	rcu_read_unlock();
+ 
+ 	if (needreset)