Bugfix: openChannelAndBind() will return RESULT_OK while the opening operation actually fails

[JohnJackal]

The current code in the master branch.

u_result AsyncTransceiver::openChannelAndBind(IChannel* channel)
{
    if (!channel) return RESULT_INVALID_DATA;

    unbindAndClose();
	u_result ans = RESULT_OK;
	do 
	{
	    rp::hal::AutoLocker l(_opLocker);

            // try to open the channel ...
            Result<nullptr_t> ans = SL_RESULT_OK;

            if (!channel->open()) {
                ans= RESULT_OPERATION_FAIL;
                break;
            }


            // force a flush to clear any pending data
            channel->flush();

	    _dataEvt.set(false);

	    _isWorking = true;
            _workingFlag = 0;
            _bindedChannel = channel;


	    _decoderThread = CLASS_THREAD(AsyncTransceiver, _proc_decoderThread);
	    _rxThread = CLASS_THREAD(AsyncTransceiver, _proc_rxThread);

        


	} while (0);

	return ans;
}

You defined two ans in the function, which causes chaos. The one defiend in the inner scope should be deleted, so that the bug would be fixed.