Merge branch 'qt-4.7-from-4.6' of scm.dev.nokia.troll.no:qt/qt-integration into 4.7-integration

* 'qt-4.7-from-4.6' of scm.dev.nokia.troll.no:qt/qt-integration: (57 commits)
  QNAM: Add a code comment related to the cache
  QtScript: regression with instanceof operator for QMetaObject wrappers
  QNAM HTTP: Fixed a bug when getting empty files with pipelining
  Fix window transparency on Symbian.
  Tweak the 'normalGeometry' of the widget before setting it.
  Use QDesktopWidget as a status pane observer on Symbian.
  Delay creation of S60 screen furniture.
  Don't use setGeometry() in setWindowState() on Symbian.
  Modify setWindowState() on Symbian to create the native window earlier.
  [tst_bic] Fix compilation in non-X11/Mac/Windows platforms
  Compile on symbian:
  QAudioOutput always uses default output device
  symbian: deploy 4.wav test file properly
  QS60Style: Style draws a focus frame to context menus and popups
  Fix accidental change in QtWebKit
  QNAM HTTP: Pipelining improvement
  Context menu for application is differs from native S60 apps
  No repaint when resizing graphics item with an effect.
  fix qmake conditionals
  QtScript: Add translation context test
  ...

1 files changed, 6 insertions, 7 deletions

diff --git a/src/corelib/io/qiodevice.cpp b/src/corelib/io/qiodevice.cpp
index f2cef4e1..bb11d6b 100644
--- a/src/corelib/io/qiodevice.cpp
+++ b/src/corelib/io/qiodevice.cpp
@@ -755,7 +755,6 @@ qint64 QIODevice::bytesToWrite() const
 qint64 QIODevice::read(char *data, qint64 maxSize)
 {
     Q_D(QIODevice);
-    CHECK_READABLE(read, qint64(-1));
 
 #if defined QIODEVICE_DEBUG
     printf("%p QIODevice::read(%p, %d), d->pos = %d, d->buffer.size() = %d\n",
@@ -786,13 +785,13 @@ qint64 QIODevice::read(char *data, qint64 maxSize)
     do {
         // Try reading from the buffer.
         int lastReadChunkSize = d->buffer.read(data, maxSize);
-        *d->pPos += lastReadChunkSize;
-        readSoFar += lastReadChunkSize;
-        // fast exit when satisfied by buffer
-        if (lastReadChunkSize == maxSize && !(d->openMode & Text))
-            return readSoFar;
-
         if (lastReadChunkSize > 0) {
+            *d->pPos += lastReadChunkSize;
+            readSoFar += lastReadChunkSize;
+            // fast exit when satisfied by buffer
+            if (lastReadChunkSize == maxSize && !(d->openMode & Text))
+                return readSoFar;
+
             data += lastReadChunkSize;
             maxSize -= lastReadChunkSize;
 #if defined QIODEVICE_DEBUG