503 	struct ecryptfs_global_auth_tok *walker;  in ecryptfs_find_global_auth_tok_for_sig()  local
509 	list_for_each_entry(walker,  in ecryptfs_find_global_auth_tok_for_sig()
512 		if (memcmp(walker->sig, sig, ECRYPTFS_SIG_SIZE_HEX))  in ecryptfs_find_global_auth_tok_for_sig()
515 		if (walker->flags & ECRYPTFS_AUTH_TOK_INVALID) {  in ecryptfs_find_global_auth_tok_for_sig()
520 		rc = key_validate(walker->global_auth_tok_key);  in ecryptfs_find_global_auth_tok_for_sig()
527 		down_write(&(walker->global_auth_tok_key->sem));  in ecryptfs_find_global_auth_tok_for_sig()
529 				walker->global_auth_tok_key, auth_tok);  in ecryptfs_find_global_auth_tok_for_sig()
533 		(*auth_tok_key) = walker->global_auth_tok_key;  in ecryptfs_find_global_auth_tok_for_sig()
540 	up_write(&(walker->global_auth_tok_key->sem));  in ecryptfs_find_global_auth_tok_for_sig()
543 	walker->flags |= ECRYPTFS_AUTH_TOK_INVALID;  in ecryptfs_find_global_auth_tok_for_sig()
544 	key_put(walker->global_auth_tok_key);  in ecryptfs_find_global_auth_tok_for_sig()
545 	walker->global_auth_tok_key = NULL;  in ecryptfs_find_global_auth_tok_for_sig()