ret = libusb_bulk_transfer(versaloon_usb_device_handle,
versaloon_interface.usb_setting.ep_out,
versaloon_buf, out_len, &transferred, versaloon_usb_to);
- if (0 != ret || transferred != out_len) {
+ if (ret != 0 || transferred != out_len) {
LOG_ERROR(ERRMSG_FAILURE_OPERATION, "send usb data");
return ERRCODE_FAILURE_OPERATION;
}