static int ssb_pcihost_probe()

in pcihost_wrapper.c [67:107]

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

static int ssb_pcihost_probe(struct pci_dev *dev,
			     const struct pci_device_id *id)
{
	struct ssb_bus *ssb;
	int err = -ENOMEM;
	u32 val;

	ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
	if (!ssb)
		goto out;
	err = pci_enable_device(dev);
	if (err)
		goto err_kfree_ssb;
	err = pci_request_regions(dev, dev_driver_string(&dev->dev));
	if (err)
		goto err_pci_disable;
	pci_set_master(dev);

	/* Disable the RETRY_TIMEOUT register (0x41) to keep
	 * PCI Tx retries from interfering with C3 CPU state */
	pci_read_config_dword(dev, 0x40, &val);
	if ((val & 0x0000ff00) != 0)
		pci_write_config_dword(dev, 0x40, val & 0xffff00ff);

	err = ssb_bus_pcibus_register(ssb, dev);
	if (err)
		goto err_pci_release_regions;

	pci_set_drvdata(dev, ssb);

out:
	return err;

err_pci_release_regions:
	pci_release_regions(dev);
err_pci_disable:
	pci_disable_device(dev);
err_kfree_ssb:
	kfree(ssb);
	return err;
}