diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2014-09-30 14:15:23 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-09-30 13:17:48 -0400 |
| commit | 4d9f634b02e4240f86719f30e4c9e62f6a4c4d36 (patch) | |
| tree | ebb24bcd1fe800477529e004de8928fd361a2814 /drivers/net/wireless/ath | |
| parent | 4eb3af7c1df32dcd4362c2f20928f679ed78f2e5 (diff) | |
ath9k: Check early for HW reset
chan_lock is not required for checking if
we are in the middle of a HW reset, so do it
early. This also removes the small window
where the lock is dropped and reacquired.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/xmit.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index aae70a10d1e0..7193a00d3bca 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1839,15 +1839,17 @@ void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq) if (txq->mac80211_qnum < 0) return; + if (test_bit(ATH_OP_HW_RESET, &common->op_flags)) + return; + spin_lock_bh(&sc->chan_lock); ac_list = &sc->cur_chan->acq[txq->mac80211_qnum]; - spin_unlock_bh(&sc->chan_lock); - if (test_bit(ATH_OP_HW_RESET, &common->op_flags) || - list_empty(ac_list)) + if (list_empty(ac_list)) { + spin_unlock_bh(&sc->chan_lock); return; + } - spin_lock_bh(&sc->chan_lock); rcu_read_lock(); last_ac = list_entry(ac_list->prev, struct ath_atx_ac, list); |