PVS-Studio warning V547 for NetXMS

bool CatalystDriver::isDeviceSupported(
  SNMP_Transport *snmp, const TCHAR *oid)
{
  DWORD value = 0;
  if (SnmpGet(snmp->getSnmpVersion(), snmp,
             _T(".1.3.6.1.4.1.9.5.1.2.14.0"),
             NULL, 0, &value, sizeof(DWORD), 0)
      != SNMP_ERR_SUCCESS)
    return false;
  // Catalyst 3550 can return 0 as number of slots
  return value >= 0;
}

This suspicious code was found in NetXMS project by PVS-Studio static code analyzer.
Warning message is:
V547 Expression 'value >= 0' is always true. Unsigned type value is always >= 0. catalyst.cpp 71

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