Fix create_buffer issues on cpu devices
Fix create_buffer issues on cpu devices


sayge/opencl-toolbox,jgebbie/opencl-toolbox,sayge/opencl-toolbox,martbrooke/opencl-toolbox,jgebbie/opencl-toolbox,jgebbie/opencl-toolbox,martbrooke/opencl-toolbox,sayge/opencl-toolbox,martbrooke/opencl-toolbox