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ath9k_htc: Protect ampdu_action with a mutex 

This is required when issuing commands to the firmware.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2011-02-21 07:49:08 +05:30 committed by John W. Linville
parent 2299423bd0
commit 87df89579a
1 changed files with 4 additions and 0 deletions
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4
drivers/net/wireless/ath/ath9k/htc_drv_main.c
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@ -1639,6 +1639,8 @@ static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
struct ath9k_htc_sta *ista;
int ret = 0;
mutex_lock(&priv->mutex);
switch (action) {
case IEEE80211_AMPDU_RX_START:
break;
@ -1663,6 +1665,8 @@ static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
ath_err(ath9k_hw_common(priv->ah), "Unknown AMPDU action\n");
}
mutex_unlock(&priv->mutex);
return ret;
}