delphi - ここにメモリリークがありますか？

Question

このコードはメモリリークから安全ですか?

s := TStringList.Create; // create  first object
try
  // Here line comes that seems to be dangerous
  s := GetSomeSettings; // Overrides reference to first object by second one
finally
  s.free; // Destroying only second object, leave first object to live somewhere in memory
end;


function GetSomeSettings : TStringList;
var
  rawString : string;
  settings : TStringList;
begin
  // Singleton pattern implementation

  // Trying to find already existing settings in class variable
  settings := TSettingsClass.fSettings;

  // If there is no already defined settings then get them
  if not Assigned(settings) then
  begin         
    GetSettingsInDB(rawString);
    TSettingsClass.fSettings := ParseSettingsString(rawString);
    settings := TSettingsClass.fSettings;       
  end;
  Result := settings;
end;

s := GetSomeSettings;潜在的に有害で、最初のオブジェクトを無視して、それをメモリに保持しているのだろうか?