التطبيق يطلب منى clean up ل useEffect كيف افعلها ؟؟

التطبيق يطلب منى clean up ل useEffect كيف افعلها ؟؟

هذا هو الكود 

 const [modalVisiable, setModalVisiable] = useState(false);
  const [selectedType, setSelectedType] = useState("نوع المخالفة");
  const [location, setLocation] = useState(initLocation);
  const [errorMsg, setErrorMsg] = useState(null);

  //
  const [startCamera, setStartCamera] = useState(false);
  const [capturedImage, setCapturedImage] = useState(null);
  const [waitMessage, setWaitMessage] = useState("");

  const __takePicture = async () => {
    if (!camera) return;
    setWaitMessage("انتظر قليلا حتى يتم تحويلك");
    const photo = await camera.takePictureAsync();
    console.log(photo);
    setCapturedImage(photo);
    console.log(capturedImage);
    setStartCamera(false);
    setWaitMessage("");
  };
  let camera = Camera;

  useEffect(() => {
    (async () => {
      let { status } = await Location.requestForegroundPermissionsAsync();
      if (status !== "granted") {
        setErrorMsg("يجب عليك ان توافق على التصريح");
        return;
      }
      let location = await Location.getCurrentPositionAsync({});
      setLocation(location);
    })();
  }, []);