Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-1:
  Fix potential networking crash due to null-pointer dereference
  Revert "Improve timer ID safety by using a serial counter per ID."
  Invalidate QScriptPrograms when engine is destroyed
  Fix alignment issue causing crash in QtScript/JavaScriptCore
  Restore Qt 4.6 behaviour: exec() always enters the event loop.
  Make syncqt not complain about missing header macros.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/network/access/qnetworkreplyimpl.cpp b/src/network/access/qnetworkreplyimpl.cpp
index 9d7082c..343f344 100644
--- a/src/network/access/qnetworkreplyimpl.cpp
+++ b/src/network/access/qnetworkreplyimpl.cpp
@@ -109,7 +109,7 @@ void QNetworkReplyImplPrivate::_q_startOperation()
     }
 #endif
 
-    if (backend->isSynchronous()) {
+    if (backend && backend->isSynchronous()) {
         state = Finished;
     } else {
         if (state != Finished) {
@@ -296,7 +296,7 @@ void QNetworkReplyImplPrivate::setup(QNetworkAccessManager::Operation op, const
     // in QtWebKit.
     QVariant synchronousHttpAttribute = req.attribute(
             static_cast<QNetworkRequest::Attribute>(QNetworkRequest::DownloadBufferAttribute + 1));
-    if (synchronousHttpAttribute.toBool()) {
+    if (backend && synchronousHttpAttribute.toBool()) {
         backend->setSynchronous(true);
         if (outgoingData && outgoingData->isSequential()) {
             outgoingDataBuffer = new QRingBuffer();
@@ -351,7 +351,7 @@ void QNetworkReplyImplPrivate::setup(QNetworkAccessManager::Operation op, const
             QMetaObject::invokeMethod(q, "_q_startOperation", Qt::QueuedConnection);
         }
 #else
-        if (backend->isSynchronous())
+        if (backend && backend->isSynchronous())
             _q_startOperation();
         else
             QMetaObject::invokeMethod(q, "_q_startOperation", Qt::QueuedConnection);