PVS-Studio warning V522 for dmd-project

Expression *getVarExp(Loc loc, InterState *istate,
                      Declaration *d, CtfeGoal goal)
{
  ....
  VarDeclaration *v = d->isVarDeclaration();
  if (v)
  {
    ....
  }
  else if (s)
  {
    if (s->dsym->toInitializer() == s->sym)
      ....
    else
      error(loc,
            "cannot interpret symbol %s at compile time",
            v->toChars());
  }
  ....
}

This suspicious code was found in dmd-project project by PVS-Studio static code analyzer.
Warning message is:
V522 Dereferencing of the null pointer 'v' might take place. interpret.c 1711

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/