2 files changed, 5 insertions, 4 deletions
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 868e9ed265..6365a7421b 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -1006,11 +1006,11 @@ void QGL2PaintEngineExPrivate::fillStencilWithVertexArray(const float *data,
     glStencilMask(0xff); // Enable stencil writes
 
     if (dirtyStencilRegion.intersects(currentScissorBounds)) {
-        QVector<QRect> clearRegion = dirtyStencilRegion.intersected(currentScissorBounds).rects();
+        const QRegion clearRegion = dirtyStencilRegion.intersected(currentScissorBounds);
         glClearStencil(0); // Clear to zero
-        for (int i = 0; i < clearRegion.size(); ++i) {
+        for (const QRect &rect : clearRegion) {
 #ifndef QT_GL_NO_SCISSOR_TEST
-            setScissor(clearRegion.at(i));
+            setScissor(rect);
 #endif
             glClear(GL_STENCIL_BUFFER_BIT);
         }
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index fed1779388..f249984893 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -1918,7 +1918,8 @@ void QGLTextureCache::insert(QGLContext* ctx, qint64 key, QGLTexture* texture, i
 {
     QWriteLocker locker(&m_lock);
     const QGLTextureCacheKey cacheKey = {key, QGLContextPrivate::contextGroup(ctx)};
-    m_cache.insert(cacheKey, texture, cost);
+    const bool inserted = m_cache.insert(cacheKey, texture, cost);
+    Q_UNUSED(inserted) Q_ASSERT(inserted);
 }
 
 void QGLTextureCache::remove(qint64 key)