static int intel_ntb_init_pci()

in hw/intel/ntb_hw_gen1.c [1758:1801]

• 36 lines of code
• 6 McCabe index (conditional complexity)

static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
{
	int rc;

	pci_set_drvdata(pdev, ndev);

	rc = pci_enable_device(pdev);
	if (rc)
		goto err_pci_enable;

	rc = pci_request_regions(pdev, NTB_NAME);
	if (rc)
		goto err_pci_regions;

	pci_set_master(pdev);

	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
	if (rc) {
		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
		if (rc)
			goto err_dma_mask;
		dev_warn(&pdev->dev, "Cannot DMA highmem\n");
	}

	ndev->self_mmio = pci_iomap(pdev, 0, 0);
	if (!ndev->self_mmio) {
		rc = -EIO;
		goto err_mmio;
	}
	ndev->peer_mmio = ndev->self_mmio;
	ndev->peer_addr = pci_resource_start(pdev, 0);

	return 0;

err_mmio:
err_dma_mask:
	pci_clear_master(pdev);
	pci_release_regions(pdev);
err_pci_regions:
	pci_disable_device(pdev);
err_pci_enable:
	pci_set_drvdata(pdev, NULL);
	return rc;
}