Fix Canvas memory leak

Task-number: QTBUG-59467
Change-Id: I3fa0e20676e453ec194ec71188172f4650313d1e
Reviewed-by: Gunnar Sletta <gunnar@crimson.no>
Reviewed-by: Robin Burchell <robin.burchell@crimson.no>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/quick/items/context2d/qquickcanvasitem.cpp b/src/quick/items/context2d/qquickcanvasitem.cpp
index bda3250c16..9a2e010e79 100644
--- a/src/quick/items/context2d/qquickcanvasitem.cpp
+++ b/src/quick/items/context2d/qquickcanvasitem.cpp
@@ -640,6 +640,10 @@ void QQuickCanvasItem::releaseResources()
         QQuickWindowQObjectCleanupJob::schedule(window(), d->textureProvider);
         d->textureProvider = 0;
     }
+    if (d->nodeTexture) {
+        QQuickWindowQObjectCleanupJob::schedule(window(), d->nodeTexture);
+        d->nodeTexture = 0;
+    }
 }
 
 bool QQuickCanvasItem::event(QEvent *event)
@@ -662,6 +666,8 @@ void QQuickCanvasItem::invalidateSceneGraph()
     d->node = 0; // managed by the scene graph, just reset the pointer
     delete d->textureProvider;
     d->textureProvider = 0;
+    delete d->nodeTexture;
+    d->nodeTexture = 0;
 }
 
 void QQuickCanvasItem::schedulePolish()