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Commit 4d9f634b authored by Sujith Manoharan's avatar Sujith Manoharan Committed by John W. Linville
Browse files

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: default avatarSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4eb3af7c

drivers/net/wireless/ath/ath9k/xmit.c

+6 −4
Original line number Diff line number Diff line
@@ -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);