PVS-Studio warning V547 for Miranda IM

INT_PTR CALLBACK DlgProcOptionsProtos(....)
{
  ...
  UINT64 newItem = 0;
  ...
  newItem = ListView_InsertItem(hwndList, &item);
  if(newItem >= 0)
    ListView_SetCheckState(....);
  ...
}

This suspicious code was found in Miranda IM project by PVS-Studio static code analyzer.
Warning message is:
V547 Expression 'newItem >= 0' is always true. Unsigned type value is always >= 0.  avs  options.cpp  265

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