[VPP-703]uri_tcp_test segment fault when mp->retval reply -30
@@ -192,7 +192,7 @@ vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
if (mp->retval)
{
- uword *errp = hash_get (utm->error_string_by_error_number, mp->retval);
+ uword *errp = hash_get (utm->error_string_by_error_number, -mp->retval);
clib_warning ("attach failed: %s", *errp);
utm->state = STATE_FAILED;
return;
