Re: [PATCH 1/14][NETNS]: Introduce the net-subsys id generator.

[Pavel Emelyanov <xemul@openvz.org>]

>> +int register_pernet_gen_device(int *id, struct pernet_operations *ops)
>> +{
>> +	int error;
>> +	mutex_lock(&net_mutex);
>> +again:
>> +	error = ida_get_new_above(&net_generic_ids, 1, id);
>> +	if (error) {
>> +		if (error == -EAGAIN) {
>> +			ida_pre_get(&net_generic_ids, GFP_KERNEL);
>> +			goto again;
>> +		}
> 
> 		goto out;
> 
>> +	}
>> +	error = register_pernet_operations(first_device, ops);
>> +	if (error)
>> +		ida_remove(&net_generic_ids, *id);
>> +	else if (first_device == &pernet_list)
>> +		first_device = &ops->list;
> 
> out:

Oops! Thank, will fix.