diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ath9k.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 11 |
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 747e046b03b..eb9d5228cb6 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -540,6 +540,7 @@ struct ath_softc { int irq; spinlock_t sc_resetlock; spinlock_t sc_serial_rw; + spinlock_t ani_lock; struct mutex mutex; u8 curbssid[ETH_ALEN]; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 6d63126a81f..52dfa43bc52 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -342,6 +342,7 @@ static void ath_ani_calibrate(unsigned long data) * don't calibrate when we're scanning. * we are most likely not on our home channel. */ + spin_lock(&sc->ani_lock); if (sc->sc_flags & SC_OP_SCANNING) goto set_timer; @@ -405,6 +406,7 @@ static void ath_ani_calibrate(unsigned long data) ath9k_ps_restore(sc); set_timer: + spin_unlock(&sc->ani_lock); /* * Set timer interval based on previous results. * The interval must be the shortest necessary to satisfy ANI, @@ -1310,6 +1312,7 @@ static int ath_init(u16 devid, struct ath_softc *sc) spin_lock_init(&sc->wiphy_lock); spin_lock_init(&sc->sc_resetlock); spin_lock_init(&sc->sc_serial_rw); + spin_lock_init(&sc->ani_lock); mutex_init(&sc->mutex); tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, @@ -2682,9 +2685,9 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw) aphy->state = ATH_WIPHY_SCAN; ath9k_wiphy_pause_all_forced(sc, aphy); - mutex_lock(&sc->mutex); + spin_lock_bh(&sc->ani_lock); sc->sc_flags |= SC_OP_SCANNING; - mutex_unlock(&sc->mutex); + spin_unlock_bh(&sc->ani_lock); } static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) @@ -2692,11 +2695,11 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - mutex_lock(&sc->mutex); + spin_lock_bh(&sc->ani_lock); aphy->state = ATH_WIPHY_ACTIVE; sc->sc_flags &= ~SC_OP_SCANNING; sc->sc_flags |= SC_OP_FULL_RESET; - mutex_unlock(&sc->mutex); + spin_unlock_bh(&sc->ani_lock); } struct ieee80211_ops ath9k_ops = { |