PVS-Studio warning V614 for ReactOS

HRESULT WINAPI
INetCfgComponentControl_fnApplyRegistryChanges(
  INetCfgComponentControl * iface)
{
  HKEY hKey;
  ....
  if (RegCreateKeyExW(hKey,
      L"SYSTEM\\CurrentControlSet....",
      ....) == ERROR_SUCCESS)
    ....
}

This suspicious code was found in ReactOS project by PVS-Studio static code analyzer.
Warning message is:
V614 Uninitialized pointer 'hKey' used. Consider checking the first actual argument of the 'RegCreateKeyExW' function. tcpipconf_notify.c 3138

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/