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authorSujith Manoharan <Sujith.Manoharan@atheros.com>2011-02-21 07:49:08 +0530
committerJohn W. Linville <linville@tuxdriver.com>2011-02-23 16:25:27 -0500
commit87df89579a4a3e6c767603acb762115159655745 (patch)
treeb8b8a1acc083db7cc727777e3536cc8a6f3c4cae /drivers/net/wireless/ath/ath9k/htc_drv_main.c
parent2299423bd0e32ccef78bbf1d4075617e3fd6cfd3 (diff)
downloadop-kernel-dev-87df89579a4a3e6c767603acb762115159655745.zip
op-kernel-dev-87df89579a4a3e6c767603acb762115159655745.tar.gz
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_main.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 9620f45..04cb243 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -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;
}
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