static int __init most_cdev_init()

in most_cdev.c [489:519]

• 27 lines of code
• 5 McCabe index (conditional complexity)

static int __init most_cdev_init(void)
{
	int err;

	comp.class = class_create(THIS_MODULE, "most_cdev");
	if (IS_ERR(comp.class))
		return PTR_ERR(comp.class);

	ida_init(&comp.minor_id);

	err = alloc_chrdev_region(&comp.devno, 0, CHRDEV_REGION_SIZE, "cdev");
	if (err < 0)
		goto dest_ida;
	comp.major = MAJOR(comp.devno);
	err = most_register_component(&comp.cc);
	if (err)
		goto free_cdev;
	err = most_register_configfs_subsys(&comp.cc);
	if (err)
		goto deregister_comp;
	return 0;

deregister_comp:
	most_deregister_component(&comp.cc);
free_cdev:
	unregister_chrdev_region(comp.devno, CHRDEV_REGION_SIZE);
dest_ida:
	ida_destroy(&comp.minor_id);
	class_destroy(comp.class);
	return err;
}