PVS-Studio warning V547 for CryEngineSDK

const CCircularBufferTimeline *
CCircularBufferStatsContainer::GetTimeline(
  size_t inTimelineId) const
{
  ....
  if (inTimelineId >= 0 && (int)inTimelineId < m_numTimelines)
  {
    tl = &m_timelines[inTimelineId];
  }
  else
  {
    CryWarning(VALIDATOR_MODULE_GAME,VALIDATOR_ERROR,
               "Statistics event %" PRISIZE_T
               " is larger than the max registered of %"
               PRISIZE_T ", event ignored",
               inTimelineId,m_numTimelines);
  }
  ....
}

This suspicious code was found in CryEngineSDK project by PVS-Studio static code analyzer.
Warning message is:
V547 Expression 'inTimelineId >= 0' is always true. Unsigned type value is always >= 0. circularstatsstorage.cpp 31

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