Fix API return code in case of error.
@@ -258,7 +258,7 @@ abf_itf_detach (fib_protocol_t fproto, u32 policy_id, u32 sw_if_index)
aia = abf_itf_attach_db_find (policy_id, sw_if_index);
if (NULL == aia)
- return (VNET_API_ERROR_ENTRY_ALREADY_EXISTS);
+ return (VNET_API_ERROR_NO_SUCH_ENTRY);
/*
* first remove from the interface's vector
