static void pmcraid_fail_outstanding_cmds(struct pmcraid_instance *pinstance)
{
	struct pmcraid_cmd *cmd, *temp;
	unsigned long lock_flags;

	/* pending command list is protected by pending_pool_lock. Its
	 * traversal must be done as within this lock
	 */
	spin_lock_irqsave(&pinstance->pending_pool_lock, lock_flags);
	list_for_each_entry_safe(cmd, temp, &pinstance->pending_cmd_pool,
				 free_list) {
		list_del(&cmd->free_list);
		spin_unlock_irqrestore(&pinstance->pending_pool_lock,
					lock_flags);
		cmd->ioa_cb->ioasa.ioasc =
			cpu_to_le32(PMCRAID_IOASC_IOA_WAS_RESET);
		cmd->ioa_cb->ioasa.ilid =
			cpu_to_be32(PMCRAID_DRIVER_ILID);

		/* In case the command timer is still running */
		del_timer(&cmd->timer);

		/* If this is an IO command, complete it by invoking scsi_done
		 * function. If this is one of the internal commands other
		 * than pmcraid_ioa_reset and HCAM commands invoke cmd_done to
		 * complete it
		 */
		if (cmd->scsi_cmd) {

			struct scsi_cmnd *scsi_cmd = cmd->scsi_cmd;
			__le32 resp = cmd->ioa_cb->ioarcb.response_handle;

			scsi_cmd->result |= DID_ERROR << 16;

			scsi_dma_unmap(scsi_cmd);
			pmcraid_return_cmd(cmd);

			pmcraid_info("failing(%d) CDB[0] = %x result: %x\n",
				     le32_to_cpu(resp) >> 2,
				     cmd->ioa_cb->ioarcb.cdb[0],
				     scsi_cmd->result);
			scsi_cmd->scsi_done(scsi_cmd);
		} else if (cmd->cmd_done == pmcraid_internal_done ||
			   cmd->cmd_done == pmcraid_erp_done) {
			cmd->cmd_done(cmd);
		} else if (cmd->cmd_done != pmcraid_ioa_reset &&
			   cmd->cmd_done != pmcraid_ioa_shutdown_done) {
			pmcraid_return_cmd(cmd);
		}

		atomic_dec(&pinstance->outstanding_cmds);
		spin_lock_irqsave(&pinstance->pending_pool_lock, lock_flags);
	}

	spin_unlock_irqrestore(&pinstance->pending_pool_lock, lock_flags);
}

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