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ath9k: Fix crash in MCC mode

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When a channel context is removed, the hw_queue_base
is set to -1, this will result in a panic because
ath9k_chanctx_stop_queues() can be called on an interface
that is not assigned to any context yet - for example,
when trying to scan.

Fix this issue by setting the hw_queue_base to zero
when a channel context is removed.

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 2014-10-07 10:14:37 +05:30 committed by John W. Linville
parent d2a993e20e
commit b18111d911
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ath/ath9k/main.c
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@ -2332,7 +2332,7 @@ static void ath9k_remove_chanctx(struct ieee80211_hw *hw,
conf->def.chan->center_freq);
ctx->assigned = false;
ctx->hw_queue_base = -1;
ctx->hw_queue_base = 0;
ath_chanctx_event(sc, NULL, ATH_CHANCTX_EVENT_UNASSIGN);
mutex_unlock(&sc->mutex);