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ath9k: Clear offchannel state properly

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When a pending roc or scan operation is cancelled,
the offchannel operation is cleared, but the offchannel
state in the main scheduler is not cleared. This causes
problems since an active GO will try to process a stale
offchannel request that was deferred earlier. Fix this
by clearing the state when there is no pending offchannel
(roc/scan) operation.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan
2014-11-16 06:11:06 +05:30
committed by John W. Linville
parent 89b6e35c20
commit e21a1d8b2b
1 changed files with 5 additions and 0 deletions
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drivers/net/wireless/ath/ath9k/channel.c
+5
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@@ -900,6 +900,11 @@ void ath_offchannel_next(struct ath_softc *sc)
sc->offchannel.state = ATH_OFFCHANNEL_ROC_START;
ath_chanctx_offchan_switch(sc, sc->offchannel.roc_chan);
} else {
spin_lock_bh(&sc->chan_lock);
sc->sched.offchannel_pending = false;
sc->sched.wait_switch = false;
spin_unlock_bh(&sc->chan_lock);
ath_chanctx_switch(sc, ath_chanctx_get_oper_chan(sc, false),
NULL);
sc->offchannel.state = ATH_OFFCHANNEL_IDLE;