static int _pmcraid_io_done(struct pmcraid_cmd *cmd, int reslen, int ioasc)
{
	struct scsi_cmnd *scsi_cmd = cmd->scsi_cmd;
	int rc = 0;

	scsi_set_resid(scsi_cmd, reslen);

	pmcraid_info("response(%d) CDB[0] = %x ioasc:result: %x:%x\n",
		le32_to_cpu(cmd->ioa_cb->ioarcb.response_handle) >> 2,
		cmd->ioa_cb->ioarcb.cdb[0],
		ioasc, scsi_cmd->result);

	if (PMCRAID_IOASC_SENSE_KEY(ioasc) != 0)
		rc = pmcraid_error_handler(cmd);

	if (rc == 0) {
		scsi_dma_unmap(scsi_cmd);
		scsi_cmd->scsi_done(scsi_cmd);
	}

	return rc;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.