diff --git a/3rdparty/qt/5.5/private/qpaintbuffer_p.h b/3rdparty/qt/5.5/private/qpaintbuffer_p.h
index e5089c9055..0681ae6254 100644
--- a/3rdparty/qt/5.5/private/qpaintbuffer_p.h
+++ b/3rdparty/qt/5.5/private/qpaintbuffer_p.h
@@ -320,10 +320,10 @@ class QPainterReplayer
     void processCommands(const QPaintBuffer &buffer, QPainter *painter, int begin, int end);
 
 protected:
-    QPaintBufferPrivate *d;
+    QPaintBufferPrivate *d = nullptr;
     QTransform m_world_matrix;
 
-    QPainter *painter;
+    QPainter *painter = nullptr;
 
 private:
     Q_DISABLE_COPY(QPainterReplayer)
diff --git a/plugins/quickinspector/quickdecorationsdrawer.cpp b/plugins/quickinspector/quickdecorationsdrawer.cpp
index 77f993f130..8af5f47ce7 100644
--- a/plugins/quickinspector/quickdecorationsdrawer.cpp
+++ b/plugins/quickinspector/quickdecorationsdrawer.cpp
@@ -355,6 +355,7 @@ void QuickDecorationsDrawer::drawGrid()
     QVector<QLineF> lines;
     lines.reserve((viewRect.width() / gridCellSize.width()) + (viewRect.height() / gridCellSize.height()));
 
+    // NOLINTNEXTLINE (clang-analyzer-security.FloatLoopCounter)
     for (qreal x = viewRect.left() + gridOffset.x(); x < viewRect.right(); x += gridCellSize.width()) {
         if (x < viewRect.left())
             continue;
@@ -363,6 +364,7 @@ void QuickDecorationsDrawer::drawGrid()
                         QPointF(x, viewRect.bottom()) * m_renderInfo->zoom);
     }
 
+    // NOLINTNEXTLINE (clang-analyzer-security.FloatLoopCounter)
     for (qreal y = viewRect.top() + gridOffset.y(); y < viewRect.bottom(); y += gridCellSize.height()) {
         if (y < viewRect.top())
             continue;
diff --git a/plugins/wlcompositorinspector/logview.cpp b/plugins/wlcompositorinspector/logview.cpp
index 1bf7805de4..0a17416045 100644
--- a/plugins/wlcompositorinspector/logview.cpp
+++ b/plugins/wlcompositorinspector/logview.cpp
@@ -445,6 +445,7 @@ class Timeline : public QScrollArea
             int startLine = drawRect.left() / linesSpacing - (rit - it) / m_zoom; // round the starting position so that we have nice numbers'
 
             int s = startLine;
+            // NOLINTNEXTLINE (clang-analyzer-security.FloatLoopCounter)
             for (qreal i = startLine * linesSpacing; i < drawRect.right(); i += linesSpacing, s++) {
                 bool isStep = s % substeps == 0;
                 painter.setPen(isStep ? palette.color(QPalette::Highlight) : palette.color(QPalette::Midlight));
@@ -461,6 +462,7 @@ class Timeline : public QScrollArea
             // draw the text after having drawn all the lines, so we're sure they don't go over it
             s = startLine;
             painter.setPen(palette.color(QPalette::Highlight));
+            // NOLINTNEXTLINE (clang-analyzer-security.FloatLoopCounter)
             for (qreal i = startLine * linesSpacing; i < drawRect.right(); i += step / substeps, s++) { // krazy:exclude=postfixop
                 bool isStep = s % substeps == 0;
                 if (isStep) {
diff --git a/tests/metaobjecttest.cpp b/tests/metaobjecttest.cpp
index 9cf7a6def5..673cb385ce 100644
--- a/tests/metaobjecttest.cpp
+++ b/tests/metaobjecttest.cpp
@@ -64,6 +64,8 @@ private slots:
         }
 
         QVERIFY(prop);
+        if (!prop) return; // to silence clang-tidy
+
         QCOMPARE(prop->name(), "priority");
         QCOMPARE(prop->typeName(), "QThread::Priority");
 
@@ -87,6 +89,7 @@ private slots:
         }
 
         QVERIFY(prop);
+        if (!prop) return; // to silence clang-tidy
         QCOMPARE(prop->name(), "libraryPaths");
         QCOMPARE(prop->typeName(), "QStringList");
         QCOMPARE(prop->isReadOnly(), true);
diff --git a/tests/quickinspectorpickingtest.cpp b/tests/quickinspectorpickingtest.cpp
index 301246a1f4..db82c3b7d7 100644
--- a/tests/quickinspectorpickingtest.cpp
+++ b/tests/quickinspectorpickingtest.cpp
@@ -43,8 +43,9 @@ class QuickInspectorPickingTest : public QObject
         qputenv("GAMMARAY_ServerAddress", GAMMARAY_DEFAULT_LOCAL_TCP_URL);
         Hooks::installHooks();
         Probe::startupHookReceived();
-        // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks)
+        // NOLINTNEXTLINE (clang-analyzer-cplusplus.NewDeleteLeaks)
         new ProbeCreator(ProbeCreator::Create);
+        // NOLINTNEXTLINE (clang-analyzer-cplusplus.NewDeleteLeaks)
         QTest::qWait(1); // event loop re-entry
     }