Commit 23367769 authored by Sujith's avatar Sujith Committed by John W. Linville

ath9k_htc: Fix locking for ps_idle

ps_idle is protected by the htc_pm_lock mutex.
Use it to protect the variable.
Signed-off-by: default avatarSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 3901737e
......@@ -1401,16 +1401,17 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
bool enable_radio = false;
bool idle = !!(conf->flags & IEEE80211_CONF_IDLE);
mutex_lock(&priv->htc_pm_lock);
if (!idle && priv->ps_idle)
enable_radio = true;
priv->ps_idle = idle;
mutex_unlock(&priv->htc_pm_lock);
if (enable_radio) {
ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
ath9k_htc_radio_enable(hw);
ath_print(common, ATH_DBG_CONFIG,
"not-idle: enabling radio\n");
ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
ath9k_htc_radio_enable(hw);
}
}
......@@ -1453,14 +1454,21 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
}
}
if ((changed & IEEE80211_CONF_CHANGE_IDLE) && priv->ps_idle) {
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
mutex_lock(&priv->htc_pm_lock);
if (!priv->ps_idle) {
mutex_unlock(&priv->htc_pm_lock);
goto out;
}
mutex_unlock(&priv->htc_pm_lock);
ath_print(common, ATH_DBG_CONFIG,
"idle: disabling radio\n");
ath9k_htc_radio_disable(hw);
}
out:
mutex_unlock(&priv->mutex);
return 0;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment