diff options
author | Markus Armbruster <armbru@redhat.com> | 2018-06-14 21:14:32 +0200 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2018-06-15 14:49:44 +0200 |
commit | 92adf9dbcd3cf9cedddae995b04a99f5c42ae08c (patch) | |
tree | d0528b94f615b5a24d7b97757b42e081331a0f87 /block/parallels.c | |
parent | 374c52467a38c2e811f6c0db4edc9ea7d5f34341 (diff) |
block: Clean up a misuse of qobject_to() in .bdrv_co_create_opts()
The following pattern occurs in the .bdrv_co_create_opts() methods of
parallels, qcow, qcow2, qed, vhdx and vpc:
qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
qobject_unref(qdict);
qdict = qobject_to(QDict, qobj);
if (qdict == NULL) {
ret = -EINVAL;
goto done;
}
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
[...]
ret = 0;
done:
qobject_unref(qdict);
[...]
return ret;
If qobject_to() fails, we return failure without setting errp. That's
wrong. As far as I can tell, it cannot fail here. Clean it up
anyway, by removing the useless conversion.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/parallels.c')
-rw-r--r-- | block/parallels.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/block/parallels.c b/block/parallels.c index 695899fc4b..ceb7a15d62 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -616,7 +616,7 @@ static int coroutine_fn parallels_co_create_opts(const char *filename, BlockdevCreateOptions *create_options = NULL; Error *local_err = NULL; BlockDriverState *bs = NULL; - QDict *qdict = NULL; + QDict *qdict; QObject *qobj; Visitor *v; int ret; @@ -654,14 +654,13 @@ static int coroutine_fn parallels_co_create_opts(const char *filename, qdict_put_str(qdict, "file", bs->node_name); qobj = qdict_crumple_for_keyval_qiv(qdict, errp); - qobject_unref(qdict); - qdict = qobject_to(QDict, qobj); - if (qdict == NULL) { + if (!qobj) { ret = -EINVAL; goto done; } - v = qobject_input_visitor_new_keyval(QOBJECT(qdict)); + v = qobject_input_visitor_new_keyval(qobj); + qobject_unref(qobj); visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err); visit_free(v); |