PVS-Studio warning V501 for QT

QNativeImage *QFontEngineWin::drawGDIGlyph(....)
{
  ...
  int iw = gm.width.toInt();
  int ih = gm.height.toInt();

  if (iw <= 0 || iw <= 0)
    return 0;
  ...
}

This is what should have been written here: if (iw <= 0 || ih <= 0)

This suspicious code was found in QT project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions to the left and to the right of the '||' operator: iw <= 0 || iw <= 0 QtGui qfontengine_win.cpp 1103

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/