Changeset 64754 in vbox for trunk/src/VBox

Timestamp:

Nov 25, 2016 3:33:39 PM (8 years ago)

Author:

vboxsync

Message:

FE/Qt: bugref:8671: Runtime UI: Protection versus recursive UIMachine destruction which could happen if user tries to power off VM instantly on startup.

File:

• trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachine.cpp (modified) (1 diff)

trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachine.cpp

@@ -118 +118 @@
 {
     /* Make sure machine is created: */
-    AssertPtrReturnVoid(m_spInstance);
-
+    if (!m_spInstance)
+        return;
+
+    /* Protect versus recursive call: */
+    UIMachine *pInstance = m_spInstance;
+    m_spInstance = 0;
     /* Cleanup machine UI: */
-    m_spInstance->cleanup();
+    pInstance->cleanup();
     /* Destroy machine UI: */
-    delete m_spInstance;
-    m_spInstance = 0;
+    delete pInstance;
 }