mt76: mt7615: check MT76_STATE_PM flag before accessing the device

Double-check if the device is in low-power state before accessing
registermap in mt7615_sta_rate_tbl_update() and in
mt7615_led_set_config()
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/main.c

@@ -664,8 +664,10 @@ static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw,
 			break;
 	}
 	msta->n_rates = i;
+	if (!test_bit(MT76_STATE_PM, &phy->mt76->state)) {
 		mt7615_mac_set_rates(phy, msta, NULL, msta->rates);
 		msta->rate_probe = false;
+	}
 	spin_unlock_bh(&dev->mt76.lock);
 }
 

drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c

@@ -70,6 +70,10 @@ mt7615_led_set_config(struct led_classdev *led_cdev,
 
 	mt76 = container_of(led_cdev, struct mt76_dev, led_cdev);
 	dev = container_of(mt76, struct mt7615_dev, mt76);
+
+	if (test_bit(MT76_STATE_PM, &mt76->phy.state))
+		return;
+
 	val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xffff) |
 	      FIELD_PREP(MT_LED_STATUS_OFF, delay_off) |
 	      FIELD_PREP(MT_LED_STATUS_ON, delay_on);