static int cache_add_dev()

in kernel/topology.c [348:389]

• 37 lines of code
• 7 McCabe index (conditional complexity)

static int cache_add_dev(unsigned int cpu)
{
	struct device *sys_dev = get_cpu_device(cpu);
	unsigned long i, j;
	struct cache_info *this_object;
	int retval = 0;

	if (all_cpu_cache_info[cpu].kobj.parent)
		return 0;


	retval = cpu_cache_sysfs_init(cpu);
	if (unlikely(retval < 0))
		return retval;

	retval = kobject_init_and_add(&all_cpu_cache_info[cpu].kobj,
				      &cache_ktype_percpu_entry, &sys_dev->kobj,
				      "%s", "cache");
	if (unlikely(retval < 0)) {
		cpu_cache_sysfs_exit(cpu);
		return retval;
	}

	for (i = 0; i < all_cpu_cache_info[cpu].num_cache_leaves; i++) {
		this_object = LEAF_KOBJECT_PTR(cpu,i);
		retval = kobject_init_and_add(&(this_object->kobj),
					      &cache_ktype,
					      &all_cpu_cache_info[cpu].kobj,
					      "index%1lu", i);
		if (unlikely(retval)) {
			for (j = 0; j < i; j++) {
				kobject_put(&(LEAF_KOBJECT_PTR(cpu,j)->kobj));
			}
			kobject_put(&all_cpu_cache_info[cpu].kobj);
			cpu_cache_sysfs_exit(cpu);
			return retval;
		}
		kobject_uevent(&(this_object->kobj), KOBJ_ADD);
	}
	kobject_uevent(&all_cpu_cache_info[cpu].kobj, KOBJ_ADD);
	return retval;
}