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ath9k: stop rx dma before stopping tx 

It has been found that active Rx can interfere with stopping tx DMA, which
could result in at least parts of those "Failed to stop Tx DMA!" messages.
Stopping rx before tx should prevent that.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2012-05-24 14:32:19 +02:00 committed by John W. Linville
parent 9b4760e301
commit ceea2a5196
1 changed files with 4 additions and 3 deletions
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7
drivers/net/wireless/ath/ath9k/main.c
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@ -239,7 +239,7 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
bool ret;
bool ret = true;
ieee80211_stop_queues(sc->hw);
@ -250,11 +250,12 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush)
ath9k_debug_samp_bb_mac(sc);
ath9k_hw_disable_interrupts(ah);
ret = ath_drain_all_txq(sc, retry_tx);
if (!ath_stoprecv(sc))
ret = false;
if (!ath_drain_all_txq(sc, retry_tx))
ret = false;
if (!flush) {
if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
ath_rx_tasklet(sc, 1, true);