MR_PD_INVALID
if (pd != MR_PD_INVALID)
*pDevHandle = MR_PD_INVALID; // set dev handle as invalid.
if (pd != MR_PD_INVALID)
if (pd != MR_PD_INVALID)
*pDevHandle = MR_PD_INVALID;
if (pd != MR_PD_INVALID)
if (io_info->devHandle == MR_PD_INVALID)