void xpdev_destroy_interfaces()

in sdk/linux_kernel_drivers/xdma/xdma_cdev.c [390:471]
69 lines of code
22 McCabe index (conditional complexity)

void xpdev_destroy_interfaces(struct xdma_pci_dev *xpdev)
{
	int i = 0;
	int rv;
#ifdef __XDMA_SYSFS__
	device_remove_file(&xpdev->pdev->dev, &dev_attr_xdma_dev_instance);
#endif

	if (xpdev_flag_test(xpdev, XDF_CDEV_SG)) {
		/* iterate over channels */
		for (i = 0; i < xpdev->h2c_channel_max; i++) {
			/* remove SG DMA character device */
			rv = destroy_xcdev(&xpdev->sgdma_h2c_cdev[i]);
			if (rv < 0)
				pr_err("Failed to destroy h2c xcdev %d error :0x%x\n",
						i, rv);
		}
		for (i = 0; i < xpdev->c2h_channel_max; i++) {
			rv = destroy_xcdev(&xpdev->sgdma_c2h_cdev[i]);
			if (rv < 0)
				pr_err("Failed to destroy c2h xcdev %d error 0x%x\n",
						i, rv);
		}
	}

	if (xpdev_flag_test(xpdev, XDF_CDEV_EVENT)) {
		for (i = 0; i < xpdev->user_max; i++) {
			rv = destroy_xcdev(&xpdev->events_cdev[i]);
			if (rv < 0)
				pr_err("Failed to destroy cdev event %d error 0x%x\n",
					i, rv);
		}
	}

	/* remove control character device */
	if (xpdev_flag_test(xpdev, XDF_CDEV_CTRL)) {
		rv = destroy_xcdev(&xpdev->ctrl_cdev);
		if (rv < 0)
			pr_err("Failed to destroy cdev ctrl event %d error 0x%x\n",
				i, rv);
	}

	/* remove user character device */
	if (xpdev_flag_test(xpdev, XDF_CDEV_USER)) {
		rv = destroy_xcdev(&xpdev->user_cdev);
		if (rv < 0)
			pr_err("Failed to destroy user cdev %d error 0x%x\n",
				i, rv);
	}

	if (xpdev_flag_test(xpdev, XDF_CDEV_XVC)) {
		rv = destroy_xcdev(&xpdev->xvc_cdev);
		if (rv < 0)
			pr_err("Failed to destroy xvc cdev %d error 0x%x\n",
				i, rv);
	}

	if (xpdev_flag_test(xpdev, XDF_CDEV_BYPASS)) {
		/* iterate over channels */
		for (i = 0; i < xpdev->h2c_channel_max; i++) {
			/* remove DMA Bypass character device */
			rv = destroy_xcdev(&xpdev->bypass_h2c_cdev[i]);
			if (rv < 0)
				pr_err("Failed to destroy bypass h2c cdev %d error 0x%x\n",
					i, rv);
		}
		for (i = 0; i < xpdev->c2h_channel_max; i++) {
			rv = destroy_xcdev(&xpdev->bypass_c2h_cdev[i]);
			if (rv < 0)
				pr_err("Failed to destroy bypass c2h %d error 0x%x\n",
					i, rv);
		}
		rv = destroy_xcdev(&xpdev->bypass_cdev_base);
		if (rv < 0)
			pr_err("Failed to destroy base cdev\n");
	}

	if (xpdev->major)
		unregister_chrdev_region(
				MKDEV(xpdev->major, XDMA_MINOR_BASE),
				XDMA_MINOR_COUNT);
}