xmllite/writer: Properly fail on initial state in WriteEndElement().

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/xmllite/tests/writer.c

@@ -89,7 +89,6 @@ todo_wine
     ok(hr == exp_hr, "got 0x%08x, expected 0x%08x\n", hr, exp_hr);
 
     hr = IXmlWriter_WriteEndElement(writer);
-todo_wine
     ok(hr == exp_hr, "got 0x%08x, expected 0x%08x\n", hr, exp_hr);
 
 todo_wine {

dlls/xmllite/writer.c

@@ -784,6 +784,14 @@ static HRESULT WINAPI xmlwriter_WriteEndElement(IXmlWriter *iface)
 
     TRACE("%p\n", This);
 
+    switch (This->state)
+    {
+    case XmlWriterState_Initial:
+        return E_UNEXPECTED;
+    default:
+        ;
+    }
+
     element = pop_element(This);
     if (!element)
         return WR_E_INVALIDACTION;