--- /dev/null
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1911,6 +1911,34 @@ static void ath9k_enable_rfkill(struct a
+ REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
+ }
+
++bool ath9k_hw_check_alive(struct ath_hw *ah)
++{
++ int count = 50;
++ u32 reg;
++
++ if (AR_SREV_9285_10_OR_LATER(ah))
++ return true;
++
++ do {
++ reg = REG_READ(ah, AR_OBS_BUS_1);
++
++ if ((reg & 0x7E7FFFEF) != 0x00702400)
++ return true;
++
++ switch (reg & 0x7E000B00) {
++ case 0x1E000000:
++ case 0x52000B00:
++ case 0x18000B00:
++ continue;
++ default:
++ return true;
++ }
++ } while (count-- > 0);
++
++ return false;
++}
++EXPORT_SYMBOL(ath9k_hw_check_alive);
++
+ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
+ bool bChannelChange)
+ {
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -679,6 +679,7 @@ void ath9k_hw_set11nmac2040(struct ath_h
+ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period);
+ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
+ const struct ath9k_beacon_state *bs);
++bool ath9k_hw_check_alive(struct ath_hw *ah);
+
+ bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode);
+
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -405,7 +405,8 @@ void ath9k_tasklet(unsigned long data)
+
+ ath9k_ps_wakeup(sc);
+
+- if (status & ATH9K_INT_FATAL) {
++ if ((status & ATH9K_INT_FATAL) ||
++ !ath9k_hw_check_alive(ah)) {
+ ath_reset(sc, false);
+ ath9k_ps_restore(sc);
+ return;