[Qt-creator] segmentation fault

[Mark Brand]

  Hi,

Lately the head of qt-creator master branch has been crashing with a 
segmentation fault when I open a form. This patch keeps it from 
crashing, but I don't know if this is the right way to fix it.

For what it's worth:


diff --git a/src/plugins/coreplugin/editortoolbar.cpp 
b/src/plugins/coreplugin/editortoolbar.cpp
index 6fa3737..b32d768 100644
--- a/src/plugins/coreplugin/editortoolbar.cpp
+++ b/src/plugins/coreplugin/editortoolbar.cpp
@@ -190,6 +190,9 @@ void EditorToolBar::closeView()

  void EditorToolBar::addEditor(IEditor *editor)
  {
+    if (!editor)
+        return;
+
      connect(editor, SIGNAL(changed()), this, SLOT(checkEditorStatus()));
      QWidget *toolBar = editor->toolBar();