From: Sujith.Manoharan@atheros.com Date: Tue, 11 May 2010 10:54:38 +0000 (+0530) Subject: ath9k_htc: Lock sta_notify() callback X-Git-Tag: upstream/snapshot3+hdmi~13787^2~107^2~473^2~34 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=05a30f9cf2a57ebbb2b616b5394e06b893179f13;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git ath9k_htc: Lock sta_notify() callback Since ->sta_notify() can sleep, protect the callback with a mutex. Signed-off-by: Sujith Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index 6c386da..9d371c1 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,