There are several places where ath_reset() was called without proper
calls to ath9k_ps_wakeup/ath9k_ps_restore. To fix this, add those calls
directly to ath_reset and drop them from callers where it makes sense.
Also add them to the config callback around ath_update_txpow to fix a
crash that happens when the tx power changed before any vif is brought up.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxx
---
drivers/net/wireless/ath/ath9k/main.c | 8 +++++---
drivers/net/wireless/ath/ath9k/xmit.c | 2 --
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 086043c..f21e956 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -596,14 +596,12 @@ void ath9k_tasklet(unsigned long data)
u32 status = sc->intrstatus;
u32 rxmask;
- ath9k_ps_wakeup(sc);
-
if (status & ATH9K_INT_FATAL) {
ath_reset(sc, true);
- ath9k_ps_restore(sc);
return;
}
+ ath9k_ps_wakeup(sc);
spin_lock(&sc->sc_pcu_lock);
/*
@@ -980,6 +978,7 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
/* Stop ANI */
del_timer_sync(&common->ani.timer);
+ ath9k_ps_wakeup(sc);
spin_lock_bh(&sc->sc_pcu_lock);
ieee80211_stop_queues(hw);
@@ -1026,6 +1025,7 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
/* Start ANI */
ath_start_ani(common);
+ ath9k_ps_restore(sc);
return r;
}
@@ -1751,7 +1751,9 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_POWER) {
sc->config.txpowlimit = 2 * conf->power_level;
+ ath9k_ps_wakeup(sc);
ath_update_txpow(sc);
+ ath9k_ps_restore(sc);
}
if (disable_radio) {
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 0ddfdbc..412806b 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2101,9 +2101,7 @@ static void ath_tx_complete_poll_work(struct work_struct *work)
if (needreset) {
ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_RESET,
"tx hung, resetting the chip\n");
- ath9k_ps_wakeup(sc);
ath_reset(sc, true);
- ath9k_ps_restore(sc);
}
ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
--
1.7.3.2
--
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