diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp
index 7fccac513..239fefdf0 100644
--- a/src/gui/painting/qbackingstore.cpp
+++ b/src/gui/painting/qbackingstore.cpp
@@ -987,12 +987,6 @@ void QWidgetBackingStore::sync()
 
     BeginPaintInfo beginPaintInfo;
     beginPaint(toClean, windowSurface, &beginPaintInfo);
-    if (beginPaintInfo.nothingToPaint) {
-        for (int i = 0; i < opaqueNonOverlappedWidgets.size(); ++i)
-            resetWidget(opaqueNonOverlappedWidgets[i]);
-        dirty = QRegion();
-        return;
-    }
 
     // Must do this before sending any paint events because
     // the size may change in the paint event.
diff --git a/src/gui/painting/qbackingstore_p.h b/src/gui/painting/qbackingstore_p.h
index 45b0ab109..732770525 100644
--- a/src/gui/painting/qbackingstore_p.h
+++ b/src/gui/painting/qbackingstore_p.h
@@ -55,9 +55,8 @@ QT_BEGIN_NAMESPACE
 class QWindowSurface;
 
 struct BeginPaintInfo {
-    inline BeginPaintInfo() : wasFlushed(false), nothingToPaint(false) {}
+    inline BeginPaintInfo() : wasFlushed(false) {}
     bool wasFlushed;
-    bool nothingToPaint;
 };
 
 class Q_AUTOTEST_EXPORT QWidgetBackingStore