424 	if (keyring->restrict_link) {  in keyring_destroy()
425 		struct key_restriction *keyres = keyring->restrict_link;  in keyring_destroy()
520 			  struct key_restriction *restrict_link,  in keyring_alloc()  argument
527 			    uid, gid, cred, perm, flags, restrict_link);  in keyring_alloc()
1008 		keyres = keyres->key->restrict_link;  in keyring_detect_restriction_cycle()
1029 	struct key_restriction *restrict_link;  in keyring_restrict()  local
1039 		restrict_link = keyring_restriction_alloc(restrict_link_reject);  in keyring_restrict()
1051 		restrict_link = restrict_type->lookup_restriction(restriction);  in keyring_restrict()
1054 	if (IS_ERR(restrict_link)) {  in keyring_restrict()
1055 		ret = PTR_ERR(restrict_link);  in keyring_restrict()
1062 	if (keyring->restrict_link) {  in keyring_restrict()
1064 	} else if (keyring_detect_restriction_cycle(keyring, restrict_link)) {  in keyring_restrict()
1067 		keyring->restrict_link = restrict_link;  in keyring_restrict()
1075 		key_put(restrict_link->key);  in keyring_restrict()
1076 		kfree(restrict_link);  in keyring_restrict()
1412 	if (!keyring->restrict_link || !keyring->restrict_link->check)  in __key_link_check_restriction()
1414 	return keyring->restrict_link->check(keyring, key->type, &key->payload,  in __key_link_check_restriction()
1415 					     keyring->restrict_link->key);  in __key_link_check_restriction()
1777 	if (!dead_type || !keyring->restrict_link ||  in keyring_restriction_gc()
1778 	    keyring->restrict_link->keytype != dead_type) {  in keyring_restriction_gc()
1786 	keyres = keyring->restrict_link;  in keyring_restriction_gc()