klist = keyring->payload.subscriptions; 
klist = rcu_dereference(keyring->payload.subscriptions); 
static void keyring_destroy(struct key *keyring){	struct keyring_list *klist;	int loop;	if (keyring->description) {		write_lock(&keyring_name_lock);		list_del(&keyring->type_data.link);		write_unlock(&keyring_name_lock);	}	klist = keyring->payload.subscriptions;	if (klist) {		for (loop = klist->nkeys - 1; loop >= 0; loop--)			key_put(klist->keys[loop]);		kfree(klist);	}} /* end keyring_destroy() */
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/76d8aeabfeb1c42641a81c44280177b9a08670d8/keyring.c/clean/security/keys/keyring.c