PVS-Studio warning V601 for Micro-Manager

#define DEVICE_OK   0
#define DEVICE_ERR  1 // generic, undefined error
#define DEVICE_INVALID_PROPERTY  2

int MM::PropertyCollection::CreateProperty(....)
{
  if (Find(pszName))
    return DEVICE_DUPLICATE_PROPERTY;
  ....
  if (!pProp->Set(pszValue))
    return false;
  ....
  return DEVICE_OK;
}

This suspicious code was found in Micro-Manager project by PVS-Studio static code analyzer.
Warning message is:
V601 The 'false' value is implicitly casted to the integer type. Property.cpp 364

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/