QSerialPort::waitForReadyRead(-1) timeouts

QIODevice::waitForReadyRead() specifies that the function should not timeout when the timeout argument is -1. However, QSerialPort::waitForReadyRead does timeout. From a quick look in qserialport_win.cpp it seems that the conversion of the timeout argument to WaitForMultipleObjects (line 956) is not done correctly. It should be

msecs == -1 ? INFINITE : msecs instead of qMax(msecs, 0)