Fix QSPI::isNull()

The method QSPI::isNull() should return false when QSPI is empty.

Tested on Winsows 8 and Linux with on-board, virtual and USB serial
ports using Qt5 and then Qt4.

Task-number: QTBUG-41262
Change-Id: Ic9e0afc5549311283aef7ec2ed841f5e418b7edf
Reviewed-by: Sergey Belyashov <Sergey.Belyashov@gmail.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/src/serialport/qserialportinfo.cpp b/src/serialport/qserialportinfo.cpp
index 23a4d1c..ced4361 100644
--- a/src/serialport/qserialportinfo.cpp
+++ b/src/serialport/qserialportinfo.cpp
@@ -65,7 +65,6 @@ QT_BEGIN_NAMESPACE
     \sa isNull()
 */
 QSerialPortInfo::QSerialPortInfo()
-    : d_ptr(new QSerialPortInfoPrivate)
 {
 }
 
@@ -81,7 +80,6 @@ QSerialPortInfo::QSerialPortInfo(const QSerialPortInfo &other)
     Constructs a QSerialPortInfo object from serial \a port.
 */
 QSerialPortInfo::QSerialPortInfo(const QSerialPort &port)
-    : d_ptr(new QSerialPortInfoPrivate)
 {
     foreach (const QSerialPortInfo &serialPortInfo, availablePorts()) {
         if (port.portName() == serialPortInfo.portName()) {
@@ -99,7 +97,6 @@ QSerialPortInfo::QSerialPortInfo(const QSerialPort &port)
     instance for that port.
 */
 QSerialPortInfo::QSerialPortInfo(const QString &name)
-    : d_ptr(new QSerialPortInfoPrivate)
 {
     foreach (const QSerialPortInfo &serialPortInfo, availablePorts()) {
         if (name == serialPortInfo.portName()) {
@@ -109,6 +106,11 @@ QSerialPortInfo::QSerialPortInfo(const QString &name)
     }
 }
 
+QSerialPortInfo::QSerialPortInfo(const QSerialPortInfoPrivate &dd)
+    : d_ptr(new QSerialPortInfoPrivate(dd))
+{
+}
+
 /*!
     Destroys the QSerialPortInfo object. References to the values in the
     object become invalid.