mt7601u: don't cleanup device second time after .resume()

Make sure .disconnect() doesn't cleanup the device if
.resume() failed.  This may happen when device is removed
during suspend.
Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/mediatek/mt7601u/init.c

@@ -427,6 +427,9 @@ int mt7601u_init_hardware(struct mt7601u_dev *dev)
 
 void mt7601u_cleanup(struct mt7601u_dev *dev)
 {
+	if (!test_and_clear_bit(MT7601U_STATE_INITIALIZED, &dev->state))
+		return;
+
 	mt7601u_stop_hardware(dev);
 	mt7601u_dma_cleanup(dev);
 	mt7601u_mcu_cmd_deinit(dev);

drivers/net/wireless/mediatek/mt7601u/usb.c

@@ -338,8 +338,15 @@ static int mt7601u_suspend(struct usb_interface *usb_intf, pm_message_t state)
 static int mt7601u_resume(struct usb_interface *usb_intf)
 {
 	struct mt7601u_dev *dev = usb_get_intfdata(usb_intf);
+	int ret;
+
+	ret = mt7601u_init_hardware(dev);
+	if (ret)
+		return ret;
+
+	set_bit(MT7601U_STATE_INITIALIZED, &dev->state);
 
-	return mt7601u_init_hardware(dev);
+	return 0;
 }
 
 MODULE_DEVICE_TABLE(usb, mt7601u_device_table);