key->payload.data = kmalloc(source->datalen, GFP_KERNEL); 
upayload = kmalloc(sizeof(*upayload) + source->datalen, GFP_KERNEL); if (upayload) { spayload = rcu_dereference(source->payload.data); BUG_ON(source->datalen != spayload->datalen); 
static int user_duplicate(struct key *key, const struct key *source){	int ret;	/* just copy the payload */	ret = -ENOMEM;	key->payload.data = kmalloc(source->datalen, GFP_KERNEL);	if (key->payload.data) {		key->datalen = source->datalen;		memcpy(key->payload.data, source->payload.data, source->datalen);		ret = 0;	}	return ret;} /* end user_duplicate() */
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/76d8aeabfeb1c42641a81c44280177b9a08670d8/user_defined.c/clean/security/keys/user_defined.c