static int rpmsg_dev_probe()

in rpmsg_core.c [512:564]

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

static int rpmsg_dev_probe(struct device *dev)
{
	struct rpmsg_device *rpdev = to_rpmsg_device(dev);
	struct rpmsg_driver *rpdrv = to_rpmsg_driver(rpdev->dev.driver);
	struct rpmsg_channel_info chinfo = {};
	struct rpmsg_endpoint *ept = NULL;
	int err;

	err = dev_pm_domain_attach(dev, true);
	if (err)
		goto out;

	if (rpdrv->callback) {
		strncpy(chinfo.name, rpdev->id.name, RPMSG_NAME_SIZE);
		chinfo.src = rpdev->src;
		chinfo.dst = RPMSG_ADDR_ANY;

		ept = rpmsg_create_ept(rpdev, rpdrv->callback, NULL, chinfo);
		if (!ept) {
			dev_err(dev, "failed to create endpoint\n");
			err = -ENOMEM;
			goto out;
		}

		rpdev->ept = ept;
		rpdev->src = ept->addr;
	}

	err = rpdrv->probe(rpdev);
	if (err) {
		dev_err(dev, "%s: failed: %d\n", __func__, err);
		goto destroy_ept;
	}

	if (ept && rpdev->ops->announce_create) {
		err = rpdev->ops->announce_create(rpdev);
		if (err) {
			dev_err(dev, "failed to announce creation\n");
			goto remove_rpdev;
		}
	}

	return 0;

remove_rpdev:
	if (rpdrv->remove)
		rpdrv->remove(rpdev);
destroy_ept:
	if (ept)
		rpmsg_destroy_ept(ept);
out:
	return err;
}