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ath9k: fix a minor rcu issue

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 37013
This commit is contained in:
Felix Fietkau 2013-06-22 13:59:55 +00:00
parent f47c4c80d4
commit 0f003be010
1 changed files with 22 additions and 1 deletions
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23
package/kernel/mac80211/patches/300-pending_work.patch
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@ -283,7 +283,28 @@
struct mutex mtx;
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1778,9 +1778,13 @@ static void ath_tx_txqaddbuf(struct ath_
@@ -1673,6 +1673,8 @@ void ath_txq_schedule(struct ath_softc *
txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
return;
+ rcu_read_lock();
+
ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list);
last_ac = list_entry(txq->axq_acq.prev, struct ath_atx_ac, list);
@@ -1711,8 +1713,10 @@ void ath_txq_schedule(struct ath_softc *
if (ac == last_ac ||
txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
- return;
+ break;
}
+
+ rcu_read_unlock();
}
/***********/
@@ -1778,9 +1782,13 @@ static void ath_tx_txqaddbuf(struct ath_
}
if (!internal) {