[blitter] Fix memory leak in the blitter paintengine

The raster engine and the capabilities were leaked, use the
QScopedPointer to prevent that from happening.

Cherry-picked-from: qtbase:d5f12b898b8480c891382c54672422c50218751a.

Change-Id: I31ba0117280b48ad942fbb638fb151ccb7b34385

Merge-request: 1492
Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/src/gui/painting/qpaintengine_blitter.cpp b/src/gui/painting/qpaintengine_blitter.cpp
index 75efa20..69f0301 100644
--- a/src/gui/painting/qpaintengine_blitter.cpp
+++ b/src/gui/painting/qpaintengine_blitter.cpp
@@ -198,8 +198,8 @@ public:
               hasXForm(false)
 
     {
-        raster = new QRasterPaintEngine(p->buffer());
-        capabillities = new CapabilitiesToStateMask(pmData->blittable()->capabilities());
+        raster.reset(new QRasterPaintEngine(p->buffer()));
+        capabillities.reset(new CapabilitiesToStateMask(pmData->blittable()->capabilities()));
     }
 
     inline void lock() {
@@ -279,12 +279,12 @@ public:
         raster->d_func()->systemStateChanged();
     }
 
-    QRasterPaintEngine *raster;
+    QScopedPointer<QRasterPaintEngine> raster;
 
     QBlittablePixmapData *pmData;
     bool isBlitterLocked;
 
-    CapabilitiesToStateMask *capabillities;
+    QScopedPointer<CapabilitiesToStateMask> capabillities;
 
     uint hasXForm;
 };
@@ -655,7 +655,7 @@ void QBlitterPaintEngine::setState(QPainterState *s)
 inline QRasterPaintEngine *QBlitterPaintEngine::raster() const
 {
     Q_D(const QBlitterPaintEngine);
-    return d->raster;
+    return d->raster.data();
 }
 
 QT_END_NAMESPACE