coverity#1343632 Resource leak

Change-Id: I79bf35a4c1a2f0463abc202f6c2b104ffdd5139c

libreofficekit/source/gtk/lokdocview.cxx

@@ -2579,13 +2579,13 @@ lok_doc_view_set_partmode(LOKDocView* pDocView,
                           int nPartMode)
 {
     LOKDocViewPrivate& priv = getPrivate(pDocView);
+    if (!priv->m_pDocument)
+        return;
+
     GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
     LOEvent* pLOEvent = new LOEvent(LOK_SET_PARTMODE);
     GError* error = nullptr;
 
-    if (!priv->m_pDocument)
-        return;
-
     pLOEvent->m_nPartMode = nPartMode;
     g_task_set_task_data(task, pLOEvent, LOEvent::destroy);