mshtml: Fail to create HTMLDocument if Gecko is not available.

dlls/mshtml/htmldoc.c

@@ -1957,6 +1957,7 @@ HRESULT HTMLDocument_Create(IUnknown *pUnkOuter, REFIID riid, void** ppvObject)
 {
     HTMLDocumentObj *doc;
     nsIDOMWindow *nswindow = NULL;
+    nsresult nsres;
     HRESULT hres;
 
     TRACE("(%p %s %p)\n", pUnkOuter, debugstr_guid(riid), ppvObject);
@@ -1972,23 +1973,26 @@ HRESULT HTMLDocument_Create(IUnknown *pUnkOuter, REFIID riid, void** ppvObject)
     doc->ref = 1;
     doc->basedoc.doc_obj = doc;
 
+    list_init(&doc->bindings);
+    doc->usermode = UNKNOWN_USERMODE;
+    doc->readystate = READYSTATE_UNINITIALIZED;
+
+    doc->nscontainer = NSContainer_Create(doc, NULL);
+    if(!doc->nscontainer) {
+        ERR("Failed to init Gecko, returning CLASS_E_CLASSNOTAVAILABLE\n");
+        htmldoc_release(&doc->basedoc);
+        return CLASS_E_CLASSNOTAVAILABLE;
+    }
+
     hres = htmldoc_query_interface(&doc->basedoc, riid, ppvObject);
     htmldoc_release(&doc->basedoc);
     if(FAILED(hres))
         return hres;
 
-    doc->nscontainer = NSContainer_Create(doc, NULL);
-    list_init(&doc->bindings);
-    doc->usermode = UNKNOWN_USERMODE;
-    doc->readystate = READYSTATE_UNINITIALIZED;
-
-    if(doc->nscontainer) {
-        nsresult nsres;
 
     nsres = nsIWebBrowser_GetContentDOMWindow(doc->nscontainer->webbrowser, &nswindow);
     if(NS_FAILED(nsres))
         ERR("GetContentDOMWindow failed: %08x\n", nsres);
-    }
 
     hres = HTMLWindow_Create(doc, nswindow, NULL /* FIXME */, &doc->basedoc.window);
     if(nswindow)

dlls/mshtml/tests/dom.c

@@ -438,6 +438,8 @@ static IHTMLDocument2 *create_document(void)
     hres = CoCreateInstance(&CLSID_HTMLDocument, NULL, CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER,
             &IID_IHTMLDocument2, (void**)&doc);
     ok(hres == S_OK, "CoCreateInstance failed: %08x\n", hres);
+    if(FAILED(hres))
+        return NULL;
 
     hres = IHTMLDocument2_QueryInterface(doc, &IID_IHTMLDocument5, (void**)&doc5);
     if(FAILED(hres)) {