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qapi: Smooth another visitor error checking pattern

Browse source 
Convert

    visit_type_FOO(v, ..., &ptr, &err);
    ...
    if (err) {
        ...
    }

to

    visit_type_FOO(v, ..., &ptr, errp);
    ...
    if (!ptr) {
        ...
    }

for functions that set @ptr to non-null / null on success / error.

Eliminate error_propagate() that are now unnecessary.  Delete @err
that are now unused.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-40-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2020-07-07 18:06:07 +02:00
parent 4bc6d7ee0e
commit b11a093c60
15 changed files with 36 additions and 79 deletions
Download patch file Download diff file Expand all files Collapse all files

6
hw/block/xen-block.c
View file

@ -682,11 +682,9 @@ static char *xen_block_blockdev_add(const char *id, QDict *qdict,
trace_xen_block_blockdev_add(node_name);
v = qobject_input_visitor_new(QOBJECT(qdict));
visit_type_BlockdevOptions(v, NULL, &options, &local_err);
visit_type_BlockdevOptions(v, NULL, &options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!options) {
goto fail;
}