PVS-Studio warning V611 for CxImage

bool CxImage::LayerCreate(int32_t position)
{
  ....
  CxImage** ptmp = new CxImage*[info.nNumLayers + 1];
  ....
  } else {
    free(ptmp);
    return false;
  }
  ....
}

This suspicious code was found in CxImage project by PVS-Studio static code analyzer.
Warning message is:
V611 The memory was allocated using 'new' operator but was released using the 'free' function. Consider inspecting operation logics behind the 'ptmp' variable.  ximalyr.cpp 50

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/