---

yaml
---
r: 122824
b: refs/heads/master
c: aa33de0
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5e3f308997f53d00e8cbebdb89d4f6e347aa963a
+refs/heads/master: aa33de09a849bd65b1201e1aec42e3e412c14cf6

trunk/drivers/net/wireless/ath9k/core.h

@@ -701,6 +701,7 @@ struct ath_softc {
 	struct ath_hal *sc_ah;
 	void __iomem *mem;
 	spinlock_t sc_resetlock;
+	struct mutex mutex;
 
 	u8 sc_curbssid[ETH_ALEN];
 	u8 sc_myaddr[ETH_ALEN];

trunk/drivers/net/wireless/ath9k/main.c

@@ -1324,6 +1324,7 @@ static int ath_init(u16 devid, struct ath_softc *sc)
 		printk(KERN_ERR "Unable to create debugfs files\n");
 
 	spin_lock_init(&sc->sc_resetlock);
+	mutex_init(&sc->mutex);
 	tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
 	tasklet_init(&sc->bcon_tasklet, ath9k_beacon_tasklet,
 		     (unsigned long)sc);
@@ -2133,6 +2134,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	struct ath_softc *sc = hw->priv;
 	struct ieee80211_conf *conf = &hw->conf;
 
+	mutex_lock(&sc->mutex);
 	if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
 		       IEEE80211_CONF_CHANGE_HT)) {
 		struct ieee80211_channel *curchan = hw->conf.channel;
@@ -2145,6 +2147,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 		if (pos == -1) {
 			DPRINTF(sc, ATH_DBG_FATAL, "Invalid channel: %d\n",
 				curchan->center_freq);
+			mutex_unlock(&sc->mutex);
 			return -EINVAL;
 		}
 
@@ -2165,6 +2168,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 
 		if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) {
 			DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n");
+			mutex_unlock(&sc->mutex);
 			return -EINVAL;
 		}
 
@@ -2174,6 +2178,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	if (changed & IEEE80211_CONF_CHANGE_POWER)
 		sc->sc_config.txpowlimit = 2 * conf->power_level;
 
+	mutex_unlock(&sc->mutex);
 	return 0;
 }