Address uninitialized pointer variables

Coverity CID 10721, 84861, 86705, 85424, 85422,
85259, 84863, 84857

Change-Id: Ia86970b5ac4e0be9de01b79b618d33011da6a328
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>

7 files changed, 23 insertions, 4 deletions

diff --git a/examples/quick/rendercontrol/cuberenderer.cpp b/examples/quick/rendercontrol/cuberenderer.cpp
index be503e3d8f..1b2d7dec8f 100644
--- a/examples/quick/rendercontrol/cuberenderer.cpp
+++ b/examples/quick/rendercontrol/cuberenderer.cpp
@@ -52,7 +52,9 @@ CubeRenderer::CubeRenderer(QOffscreenSurface *offscreenSurface)
     : m_offscreenSurface(offscreenSurface),
       m_context(0),
       m_program(0),
-      m_vbo(0)
+      m_vbo(0),
+      m_vao(0),
+      m_matrixLoc(0)
 {
 }
 
diff --git a/examples/quick/rendercontrol/window_multithreaded.cpp b/examples/quick/rendercontrol/window_multithreaded.cpp
index 6c0de93a19..9b6020a347 100644
--- a/examples/quick/rendercontrol/window_multithreaded.cpp
+++ b/examples/quick/rendercontrol/window_multithreaded.cpp
@@ -77,7 +77,12 @@ static const QEvent::Type STOP = QEvent::Type(QEvent::User + 4);
 static const QEvent::Type UPDATE = QEvent::Type(QEvent::User + 5);
 
 QuickRenderer::QuickRenderer()
-    : m_fbo(0),
+    : m_context(0),
+      m_surface(0),
+      m_fbo(0),
+      m_window(0),
+      m_quickWindow(0),
+      m_renderControl(0),
       m_cubeRenderer(0),
       m_quit(false)
 {
@@ -209,7 +214,8 @@ void QuickRenderer::aboutToQuit()
 }
 
 WindowMultiThreaded::WindowMultiThreaded()
-    : m_rootItem(0),
+    : m_qmlComponent(Q_NULLPTR),
+      m_rootItem(0),
       m_quickInitialized(false),
       m_psrRequested(false)
 {
diff --git a/src/qml/jsruntime/qv4errorobject.cpp b/src/qml/jsruntime/qv4errorobject.cpp
index 119ad93e63..9034dee6a0 100644
--- a/src/qml/jsruntime/qv4errorobject.cpp
+++ b/src/qml/jsruntime/qv4errorobject.cpp
@@ -60,6 +60,7 @@ using namespace QV4;
 
 Heap::ErrorObject::ErrorObject(InternalClass *ic, QV4::Object *prototype)
     : Heap::Object(ic, prototype)
+    , stack(Q_NULLPTR)
 {
     Scope scope(ic->engine);
     Scoped<QV4::ErrorObject> e(scope, this);
diff --git a/src/qml/jsruntime/qv4functionobject.cpp b/src/qml/jsruntime/qv4functionobject.cpp
index 7006a8892d..0a12d013ac 100644
--- a/src/qml/jsruntime/qv4functionobject.cpp
+++ b/src/qml/jsruntime/qv4functionobject.cpp
@@ -65,6 +65,7 @@ DEFINE_OBJECT_VTABLE(FunctionObject);
 Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, QV4::String *name, bool createProto)
     : Heap::Object(scope->d()->engine->functionClass, scope->d()->engine->functionPrototype.asObject())
     , scope(scope->d())
+    , function(Q_NULLPTR)
 {
     Scope s(scope->engine());
     ScopedFunctionObject f(s, this);
@@ -74,6 +75,7 @@ Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, QV4::String *
 Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, Function *function, bool createProto)
     : Heap::Object(scope->d()->engine->functionClass, scope->d()->engine->functionPrototype.asObject())
     , scope(scope->d())
+    , function(Q_NULLPTR)
 {
     Scope s(scope->engine());
     ScopedString name(s, function->name());
@@ -84,6 +86,7 @@ Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, Function *fun
 Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, const QString &name, bool createProto)
     : Heap::Object(scope->d()->engine->functionClass, scope->d()->engine->functionPrototype.asObject())
     , scope(scope->d())
+    , function(Q_NULLPTR)
 {
     Scope s(scope->engine());
     ScopedFunctionObject f(s, this);
@@ -94,6 +97,7 @@ Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, const QString
 Heap::FunctionObject::FunctionObject(ExecutionContext *scope, const QString &name, bool createProto)
     : Heap::Object(scope->engine->functionClass, scope->engine->functionPrototype.asObject())
     , scope(scope)
+    , function(Q_NULLPTR)
 {
     Scope s(scope->engine);
     ScopedFunctionObject f(s, this);
@@ -104,6 +108,7 @@ Heap::FunctionObject::FunctionObject(ExecutionContext *scope, const QString &nam
 Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, const ReturnedValue name)
     : Heap::Object(scope->d()->engine->functionClass, scope->d()->engine->functionPrototype.asObject())
     , scope(scope->d())
+    , function(Q_NULLPTR)
 {
     Scope s(scope);
     ScopedFunctionObject f(s, this);
@@ -114,6 +119,7 @@ Heap::FunctionObject::FunctionObject(QV4::ExecutionContext *scope, const Returne
 Heap::FunctionObject::FunctionObject(ExecutionContext *scope, const ReturnedValue name)
     : Heap::Object(scope->engine->functionClass, scope->engine->functionPrototype.asObject())
     , scope(scope)
+    , function(Q_NULLPTR)
 {
     Scope s(scope->engine);
     ScopedFunctionObject f(s, this);
@@ -124,6 +130,7 @@ Heap::FunctionObject::FunctionObject(ExecutionContext *scope, const ReturnedValu
 Heap::FunctionObject::FunctionObject(InternalClass *ic, QV4::Object *prototype)
     : Heap::Object(ic, prototype)
     , scope(ic->engine->rootContext())
+    , function(Q_NULLPTR)
 {
     Scope scope(ic->engine);
     ScopedObject o(scope, this);
diff --git a/src/qml/qml/qqmlcontextwrapper.cpp b/src/qml/qml/qqmlcontextwrapper.cpp
index b2d03bc188..5844eab54f 100644
--- a/src/qml/qml/qqmlcontextwrapper.cpp
+++ b/src/qml/qml/qqmlcontextwrapper.cpp
@@ -60,6 +60,7 @@ Heap::QmlContextWrapper::QmlContextWrapper(QV4::ExecutionEngine *engine, QQmlCon
     , isNullWrapper(false)
     , context(context)
     , scopeObject(scopeObject)
+    , idObjectsWrapper(Q_NULLPTR)
 {
 }
 
diff --git a/src/qml/qml/qqmltypewrapper.cpp b/src/qml/qml/qqmltypewrapper.cpp
index 13266135b3..8a2118ef27 100644
--- a/src/qml/qml/qqmltypewrapper.cpp
+++ b/src/qml/qml/qqmltypewrapper.cpp
@@ -51,6 +51,9 @@ DEFINE_OBJECT_VTABLE(QmlTypeWrapper);
 Heap::QmlTypeWrapper::QmlTypeWrapper(ExecutionEngine *engine)
     : Heap::Object(engine)
     , mode(IncludeEnums)
+    , type(Q_NULLPTR)
+    , typeNamespace(Q_NULLPTR)
+    , importNamespace(Q_NULLPTR)
 {
 }
 
diff --git a/tools/qmlscene/main.cpp b/tools/qmlscene/main.cpp
index 3a1815caa6..b8920cd853 100644
--- a/tools/qmlscene/main.cpp
+++ b/tools/qmlscene/main.cpp
@@ -158,7 +158,6 @@ struct Options
     bool maximized;
     bool fullscreen;
     bool transparent;
-    bool scenegraphOnGraphicsview;
     bool clip;
     bool versionDetection;
     bool slowAnimations;