QSerialPortInfo::availablePorts() leads to a memory leak

I've made some code to detect serial devices. The code works fine. However, analysing the memory using valgrind memory analyser results in the conclusion that there is some memory lost.

It might be useful to report this issue.

162,871 (44,352 direct, 118,519 indirect) bytes in 99 blocks are definitely lost in loss record 10,088 of 10,090
in DeviceDetector::refresh() in src/gui/devicedetector.cpp:25
1: calloc in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so
2: /lib/x86_64-linux-gnu/libudev.so.1.3.5
3: udev_device_new_from_syspath in /lib/x86_64-linux-gnu/libudev.so.1.3.5
4: /home/laurens/Qt5.2.1/5.2.1/gcc_64/lib/libQt5SerialPort.so.5.2.1
5: QSerialPortInfo::availablePorts() in /home/laurens/Qt5.2.1/5.2.1/gcc_64/lib/libQt5SerialPort.so.5.2.1
6: DeviceDetector::refresh() in <a href="file:///home/laurens/projects/build-configurator-Desktop_Qt_5_2_1_GCC_64bit-Debug/src/gui/../../../s001_configurator/src/gui/devicedetector.cpp:25" >src/gui/devicedetector.cpp:25</a>
7: DeviceDetector::DeviceDetector(QObject*) in <a href="file:///home/laurens/projects/build-configurator-Desktop_Qt_5_2_1_GCC_64bit-Debug/src/gui/../../../s001_configurator/src/gui/devicedetector.cpp:13" >src/gui/devicedetector.cpp:13</a>
8: MainWindow::MainWindow(QWidget*) in <a href="file:///home/laurens/projects/build-configurator-Desktop_Qt_5_2_1_GCC_64bit-Debug/src/gui/../../../s001_configurator/src/gui/gui_mainwindow.cpp:14" >src/gui/gui_mainwindow.cpp:14</a>
9: main in <a href="file:///home/laurens/projects/build-configurator-Desktop_Qt_5_2_1_GCC_64bit-Debug/src/gui/../../../s001_configurator/src/gui/main.cpp:7" >src/gui/main.cpp:7</a>