From 05a30f9cf2a57ebbb2b616b5394e06b893179f13 Mon Sep 17 00:00:00 2001
From: "Sujith.Manoharan@atheros.com" <Sujith.Manoharan@atheros.com>
Date: Tue, 11 May 2010 16:24:38 +0530
Subject: [PATCH] ath9k_htc: Lock sta_notify() callback
Since ->sta_notify() can sleep, protect
the callback with a mutex.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/htc_drv_main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 6c386dad1d40..9d371c18eb41 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1452,6 +1452,8 @@ static void ath9k_htc_sta_notify(struct ieee80211_hw *hw,
struct ath9k_htc_priv *priv = hw->priv;
int ret;
+ mutex_lock(&priv->mutex);
+
switch (cmd) {
case STA_NOTIFY_ADD:
ret = ath9k_htc_add_station(priv, vif, sta);
@@ -1464,6 +1466,8 @@ static void ath9k_htc_sta_notify(struct ieee80211_hw *hw,
default:
break;
}
+
+ mutex_unlock(&priv->mutex);
}
static int ath9k_htc_conf_tx(struct ieee80211_hw *hw, u16 queue,
--
GitLab