Merge "bthal: Do not allow to initialize more than once"

    ALOGE("cb == nullptr! -> Unable to call initializationComplete(ERR)");

    return Void();

  }

  if (hci_handle_ != nullptr) {

    ALOGE("hci_handle != nullptr! -> Double attempt to initialize the HAL");

    auto hidl_status =

        cb->initializationComplete(V1_0::Status::INITIALIZATION_ERROR);

    if (!hidl_status.isOk()) {

      ALOGE("VendorInterface -> Unable to call initializationComplete(ERR)");

    }

    return Void();

  }

  death_recipient_->setHasDied(false);

  cb->linkToDeath(death_recipient_, 0);