int cci_pci_probe()

in dfl-pci.c [341:386]

• 38 lines of code
• 10 McCabe index (conditional complexity)

int cci_pci_probe(struct pci_dev *pcidev, const struct pci_device_id *pcidevid)
{
	int ret;

	ret = pcim_enable_device(pcidev);
	if (ret < 0) {
		dev_err(&pcidev->dev, "Failed to enable device %d.\n", ret);
		return ret;
	}

	ret = pci_enable_pcie_error_reporting(pcidev);
	if (ret && ret != -EINVAL)
		dev_info(&pcidev->dev, "PCIE AER unavailable %d.\n", ret);

	pci_set_master(pcidev);

	if (!pci_set_dma_mask(pcidev, DMA_BIT_MASK(64))) {
		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
		if (ret)
			goto disable_error_report_exit;
	} else if (!pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) {
		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
		if (ret)
			goto disable_error_report_exit;
	} else {
		ret = -EIO;
		dev_err(&pcidev->dev, "No suitable DMA support available.\n");
		goto disable_error_report_exit;
	}

	ret = cci_init_drvdata(pcidev);
	if (ret) {
		dev_err(&pcidev->dev, "Fail to init drvdata %d.\n", ret);
		goto disable_error_report_exit;
	}

	ret = cci_enumerate_feature_devs(pcidev);
	if (!ret)
		return ret;

	dev_err(&pcidev->dev, "enumeration failure %d.\n", ret);

disable_error_report_exit:
	pci_disable_pcie_error_reporting(pcidev);
	return ret;
}