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| author | Sam Leffler <sam@FreeBSD.org> | 2006-02-15 18:12:24 +0000 |
|---|---|---|
| committer | Sam Leffler <sam@FreeBSD.org> | 2006-02-15 18:12:24 +0000 |
| commit | 1539af1ef5b902e8c105c6ed08a3b3c39258ede8 (patch) | |
| tree | da25c700be689222c1c9e2c836fe9ae45fcdc2df | |
| parent | 14d5e8363fda968354e29d85ce4bb51ac5b5bc1f (diff) | |
| download | src-1539af1ef5b902e8c105c6ed08a3b3c39258ede8.tar.gz src-1539af1ef5b902e8c105c6ed08a3b3c39258ede8.zip | |
close race between ath_tx_start and ath_tx_processq
Reviewed by: apatti
MFC after: 1 week
Notes
Notes:
svn path=/head/; revision=155729
| -rw-r--r-- | sys/dev/ath/if_ath.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/dev/ath/if_ath.c b/sys/dev/ath/if_ath.c index f0704279d8ef..c0cb1500b606 100644 --- a/sys/dev/ath/if_ath.c +++ b/sys/dev/ath/if_ath.c @@ -3766,7 +3766,6 @@ ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) txq->axq_intrcnt = 0; /* reset periodic desc intr count */ bf = STAILQ_FIRST(&txq->axq_q); if (bf == NULL) { - txq->axq_link = NULL; ATH_TXQ_UNLOCK(txq); break; } @@ -3782,6 +3781,8 @@ ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) break; } ATH_TXQ_REMOVE_HEAD(txq, bf_list); + if (txq->axq_depth == 0) + txq->axq_link = NULL; ATH_TXQ_UNLOCK(txq); ni = bf->bf_node; |