146     int childRet = OpenDeviceMyNeed(hUSB);  in DetectMyNeed()  local
147     if (childRet < 0) {  in DetectMyNeed()
291     int childRet = 0;  in CheckDescriptor()  local
303 …childRet = libusb_get_string_descriptor_ascii(hUSB->devHandle, desc.iSerialNumber, (uint8_t *)seri…  in CheckDescriptor()
305     if (childRet < 0) {  in CheckDescriptor()
457     int childRet = 0;  in UsbToHdcProtocol()  local
460         if ((childRet = select(fd + 1, nullptr, &fdSet, nullptr, &timeout)) <= 0) {  in UsbToHdcProtocol()
468             WRITE_LOG(LOG_FATAL, "select error:%d [%s][%d]", errno, buf, childRet);  in UsbToHdcProtocol()
471 …      childRet = send(fd, reinterpret_cast<const char *>(appendData) + index, dataSize - index, 0);  in UsbToHdcProtocol()
472         if (childRet < 0) {  in UsbToHdcProtocol()
483         index += childRet;  in UsbToHdcProtocol()
497     int childRet = 0;  in USBBulkCallback()  local
511         childRet = libusb_submit_transfer(transfer);  in USBBulkCallback()
512         if (childRet != 0) {  in USBBulkCallback()
513             WRITE_LOG(LOG_FATAL, "USBBulkCallback2 failed, ret:%d", childRet);  in USBBulkCallback()
527     int childRet = 0;  in SubmitUsbBio()  local
544         childRet = libusb_submit_transfer(ep->transfer);  in SubmitUsbBio()
546         if (childRet < 0) {  in SubmitUsbBio()
547             WRITE_LOG(LOG_FATAL, "SubmitUsbBio libusb_submit_transfer failed, ret:%d", childRet);  in SubmitUsbBio()
568         int childRet = 0;  in BeginUsbRead()  local
572             nextReadSize = (childRet < hUSB->wMaxPacketSizeSend ? hUSB->wMaxPacketSizeSend  in BeginUsbRead()
573 …                                                  : std::min(childRet, Base::GetUsbffsBulkSize()));  in BeginUsbRead()
574             childRet = SubmitUsbBio(hSession, false, hUSB->hostBulkIn.buf, nextReadSize);  in BeginUsbRead()
575             if (childRet < 0) {  in BeginUsbRead()
576                 WRITE_LOG(LOG_FATAL, "Read usb failed, ret:%d", childRet);  in BeginUsbRead()
579 …childRet = SendToHdcStream(hSession, reinterpret_cast<uv_stream_t *>(&hSession->dataPipe[STREAM_MA…  in BeginUsbRead()
580                                        hUSB->hostBulkIn.buf, childRet);  in BeginUsbRead()
581             if (childRet < 0) {  in BeginUsbRead()
582                 WRITE_LOG(LOG_FATAL, "SendToHdcStream failed, ret:%d", childRet);  in BeginUsbRead()
676             int childRet = OpenDeviceMyNeed(hUSB);  in FindDeviceByID()  local
677             WRITE_LOG(LOG_DEBUG, "OpenDeviceMyNeed childRet:%d", childRet);  in FindDeviceByID()
678             if (!childRet) {  in FindDeviceByID()