"gps" location provider requires ACCESS_FINE_LOCATION permission for android 6.0

Try this code

private void marshmallowGPSPremissionCheck() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
                && getActivity().checkSelfPermission(
                Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && getActivity().checkSelfPermission(
                Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            requestPermissions(
                    new String[]{Manifest.permission.ACCESS_COARSE_LOCATION,
                            Manifest.permission.ACCESS_FINE_LOCATION},
                    MY_PERMISSION_LOCATION);
        } else {
            //   gps functions.
        }
    }

add this also..................

@Override
    public void onRequestPermissionsResult(int requestCode,
                                           String[] permissions, int[] grantResults) {
        if (requestCode == MY_PERMISSION_LOCATION
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            //  gps functionality
        }
    }

Since 6.0 some permissions are considered as "dangerous" (FINE_LOCATION is one of them).

To protect the user, they have to be authorized at runtime, so the user know if it's related to his action.

To do this :

 ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);

It will show a DialogBox in which user will choose wether he autorize your app to use location or not.

Then get the user answer by using this function :

public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 1: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
            && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

            } else {
                // permission denied, boo! Disable the
                // functionality that depends on this permission.
            }
        return;
        }
            // other 'case' lines to check for other
            // permissions this app might request
    }
}

If the user accept it once, then your app will remember it and you won't need to send this DialogBox anymore. Note that the user could disable it later if he decided to. Then before requesting the location, you would have to test if the permission is still granted :

public boolean checkLocationPermission()
{
    String permission = "android.permission.ACCESS_FINE_LOCATION";
    int res = this.checkCallingOrSelfPermission(permission);
    return (res == PackageManager.PERMISSION_GRANTED);
}

It's all explained on Android documentation (onRequestPermissionsResult from there too): http://developer.android.com/training/permissions/requesting.html