diff --git a/src/corelib/tools/qlinkedlist.h b/src/corelib/tools/qlinkedlist.h
index 1fa4eaabd0..28f190c7fa 100644
--- a/src/corelib/tools/qlinkedlist.h
+++ b/src/corelib/tools/qlinkedlist.h
@@ -241,8 +241,6 @@ private:
 template <typename T>
 inline QLinkedList<T>::~QLinkedList()
 {
-    if (!d)
-        return;
     if (!d->ref.deref())
         free(d);
 }
diff --git a/src/corelib/tools/qmap.h b/src/corelib/tools/qmap.h
index a8306194d4..dc358a8106 100644
--- a/src/corelib/tools/qmap.h
+++ b/src/corelib/tools/qmap.h
@@ -179,7 +179,7 @@ public:
     inline QMap() : d(const_cast<QMapData *>(&QMapData::shared_null)) { }
     inline QMap(const QMap<Key, T> &other) : d(other.d)
     { d->ref.ref(); if (!d->sharable) detach(); }
-    inline ~QMap() { if (!d) return; if (!d->ref.deref()) freeData(d); }
+    inline ~QMap() { if (!d->ref.deref()) freeData(d); }
 
     QMap<Key, T> &operator=(const QMap<Key, T> &other);
 #ifdef Q_COMPILER_RVALUE_REFS
diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h
index 22ce2a3d8a..6357c24621 100644
--- a/src/corelib/tools/qvector.h
+++ b/src/corelib/tools/qvector.h
@@ -126,7 +126,7 @@ public:
         }
     }
 
-    inline ~QVector() { if (!d) return; if (!d->ref.deref()) free(p); }
+    inline ~QVector() { if (!d->ref.deref()) free(p); }
     QVector<T> &operator=(const QVector<T> &v);
 #ifdef Q_COMPILER_RVALUE_REFS
     inline QVector<T> operator=(QVector<T> &&other)