@@ -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);
@@ -946,7 +946,7 @@ static int coroutine_fn qcow_co_create_opts(const char *filename,
{
BlockdevCreateOptions *create_options = NULL;
BlockDriverState *bs = NULL;
- QDict *qdict = NULL;
+ QDict *qdict;
QObject *qobj;
Visitor *v;
const char *val;
@@ -998,14 +998,13 @@ static int coroutine_fn qcow_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 fail;
}
- 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);
@@ -3080,7 +3080,7 @@ static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opt
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
- QDict *qdict = NULL;
+ QDict *qdict;
QObject *qobj;
Visitor *v;
BlockDriverState *bs = NULL;
@@ -3153,14 +3153,13 @@ static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opt
/* Now get the QAPI type BlockdevCreateOptions */
qobj = qdict_crumple_for_keyval_qiv(qdict, errp);
- qobject_unref(qdict);
- qdict = qobject_to(QDict, qobj);
- if (qdict == NULL) {
+ if (!qobj) {
ret = -EINVAL;
goto finish;
}
- 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);
@@ -722,7 +722,7 @@ static int coroutine_fn bdrv_qed_co_create_opts(const char *filename,
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
- QDict *qdict = NULL;
+ QDict *qdict;
QObject *qobj;
Visitor *v;
BlockDriverState *bs = NULL;
@@ -764,14 +764,13 @@ static int coroutine_fn bdrv_qed_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 fail;
}
- 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);
@@ -1965,7 +1965,7 @@ static int coroutine_fn vhdx_co_create_opts(const char *filename,
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
- QDict *qdict = NULL;
+ QDict *qdict;
QObject *qobj;
Visitor *v;
BlockDriverState *bs = NULL;
@@ -2006,14 +2006,13 @@ static int coroutine_fn vhdx_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 fail;
}
- 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);
@@ -1081,7 +1081,7 @@ static int coroutine_fn vpc_co_create_opts(const char *filename,
QemuOpts *opts, Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
- QDict *qdict = NULL;
+ QDict *qdict;
QObject *qobj;
Visitor *v;
BlockDriverState *bs = NULL;
@@ -1120,14 +1120,13 @@ static int coroutine_fn vpc_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 fail;
}
- 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);
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> --- block/parallels.c | 9 ++++----- block/qcow.c | 9 ++++----- block/qcow2.c | 9 ++++----- block/qed.c | 9 ++++----- block/vhdx.c | 9 ++++----- block/vpc.c | 9 ++++----- 6 files changed, 24 insertions(+), 30 deletions(-)