PVS-Studio warning V547 for IPP Samples

typedef signed int     Ipp32s;
typedef unsigned int   Ipp32u;

Ipp32s StreamParser::GetTrackByPidOrCreateNew(Ipp32s iPid,
                                              bool *pIsNew)
{
  ...
  else if (!pIsNew || m_uiTracks >= MAX_TRACK)
    return -1;
  ...
}

Status StreamParser::GetNextData(MediaData *pData,
                                 Ipp32u *pTrack)
{
  ...
  *pTrack = GetTrackByPidOrCreateNew(m_pPacket->iPid, NULL);

  if (*pTrack >= 0 && TRACK_LPCM == m_pInfo[*pTrack]->m_Type)
    ippsSwapBytes_16u_I((Ipp16u *)pData->GetDataPointer(),
                        m_pPacket->uiSize / 2);
  ...
}

This suspicious code was found in IPP Samples project by PVS-Studio static code analyzer.
Warning message is:
V547 Expression '* pTrack >= 0' is always true. Unsigned type value is always >= 0. demuxer umc_stream_parser.cpp 179

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