qapi: Drop unused error argument for list and implicit struct

No backend was setting an error when ending the visit of a list or
implicit struct, or when moving to the next list node.  Make the
callers a bit easier to follow by making this a part of the contract,
and removing the errp argument - callers can then unconditionally end
an object as part of cleanup without having to think about whether a
second error is dominated by a first, because there is no second
error.

A later patch will then tackle the larger task of splitting
visit_end_struct(), which can indeed set an error.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1454075341-13658-24-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2016-01-29 06:48:59 -07:00 committed by Markus Armbruster
parent bdd8e6b5d8
commit 08f9541dec
11 changed files with 41 additions and 53 deletions

View file

@ -1,6 +1,7 @@
/*
* Input Visitor
*
* Copyright (C) 2012-2016 Red Hat, Inc.
* Copyright IBM, Corp. 2011
*
* Authors:
@ -154,10 +155,6 @@ static void qmp_input_start_implicit_struct(Visitor *v, void **obj,
}
}
static void qmp_input_end_implicit_struct(Visitor *v, Error **errp)
{
}
static void qmp_input_start_list(Visitor *v, const char *name, Error **errp)
{
QmpInputVisitor *qiv = to_qiv(v);
@ -172,8 +169,7 @@ static void qmp_input_start_list(Visitor *v, const char *name, Error **errp)
qmp_input_push(qiv, qobj, errp);
}
static GenericList *qmp_input_next_list(Visitor *v, GenericList **list,
Error **errp)
static GenericList *qmp_input_next_list(Visitor *v, GenericList **list)
{
QmpInputVisitor *qiv = to_qiv(v);
GenericList *entry;
@ -202,7 +198,7 @@ static GenericList *qmp_input_next_list(Visitor *v, GenericList **list,
return entry;
}
static void qmp_input_end_list(Visitor *v, Error **errp)
static void qmp_input_end_list(Visitor *v)
{
QmpInputVisitor *qiv = to_qiv(v);
@ -353,7 +349,6 @@ QmpInputVisitor *qmp_input_visitor_new(QObject *obj)
v->visitor.start_struct = qmp_input_start_struct;
v->visitor.end_struct = qmp_input_end_struct;
v->visitor.start_implicit_struct = qmp_input_start_implicit_struct;
v->visitor.end_implicit_struct = qmp_input_end_implicit_struct;
v->visitor.start_list = qmp_input_start_list;
v->visitor.next_list = qmp_input_next_list;
v->visitor.end_list = qmp_input_end_list;