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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
Show stats Download patch file Download diff file Expand all files Collapse all files

7
block/nfs.c
View file

@ -563,18 +563,15 @@ static BlockdevOptionsNfs *nfs_options_qdict_to_qapi(QDict *options,
BlockdevOptionsNfs *opts = NULL;
Visitor *v;
const QDictEntry *e;
Error *local_err = NULL;
v = qobject_input_visitor_new_flat_confused(options, errp);
if (!v) {
return NULL;
}
visit_type_BlockdevOptionsNfs(v, NULL, &opts, &local_err);
visit_type_BlockdevOptionsNfs(v, NULL, &opts, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!opts) {
return NULL;
}

7
block/parallels.c
View file

@ -625,7 +625,6 @@ static int coroutine_fn parallels_co_create_opts(BlockDriver *drv,
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
Error *local_err = NULL;
BlockDriverState *bs = NULL;
QDict *qdict;
Visitor *v;
@ -668,11 +667,9 @@ static int coroutine_fn parallels_co_create_opts(BlockDriver *drv,
goto done;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto done;
}

7
block/qcow.c
View file

@ -943,7 +943,6 @@ static int coroutine_fn qcow_co_create_opts(BlockDriver *drv,
QDict *qdict;
Visitor *v;
const char *val;
Error *local_err = NULL;
int ret;
static const QDictRenames opt_renames[] = {
@ -995,11 +994,9 @@ static int coroutine_fn qcow_co_create_opts(BlockDriver *drv,
goto fail;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto fail;
}

7
block/qcow2.c
View file

@ -3685,7 +3685,6 @@ static int coroutine_fn qcow2_co_create_opts(BlockDriver *drv,
Visitor *v;
BlockDriverState *bs = NULL;
BlockDriverState *data_bs = NULL;
Error *local_err = NULL;
const char *val;
int ret;
@ -3781,11 +3780,9 @@ static int coroutine_fn qcow2_co_create_opts(BlockDriver *drv,
goto finish;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto finish;
}

7
block/qed.c
View file

@ -729,7 +729,6 @@ static int coroutine_fn bdrv_qed_co_create_opts(BlockDriver *drv,
QDict *qdict;
Visitor *v;
BlockDriverState *bs = NULL;
Error *local_err = NULL;
int ret;
static const QDictRenames opt_renames[] = {
@ -771,11 +770,9 @@ static int coroutine_fn bdrv_qed_co_create_opts(BlockDriver *drv,
goto fail;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto fail;
}

7
block/rbd.c
View file

@ -681,7 +681,6 @@ static int qemu_rbd_convert_options(QDict *options, BlockdevOptionsRbd **opts,
Error **errp)
{
Visitor *v;
Error *local_err = NULL;
/* Convert the remaining options into a QAPI object */
v = qobject_input_visitor_new_flat_confused(options, errp);
@ -689,11 +688,9 @@ static int qemu_rbd_convert_options(QDict *options, BlockdevOptionsRbd **opts,
return -EINVAL;
}
visit_type_BlockdevOptionsRbd(v, NULL, opts, &local_err);
visit_type_BlockdevOptionsRbd(v, NULL, opts, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!opts) {
return -EINVAL;
}

6
block/sheepdog.c
View file

@ -2193,11 +2193,9 @@ static int coroutine_fn sd_co_create_opts(BlockDriver *drv,
goto fail;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto fail;
}

7
block/ssh.c
View file

@ -616,7 +616,6 @@ static BlockdevOptionsSsh *ssh_parse_options(QDict *options, Error **errp)
{
BlockdevOptionsSsh *result = NULL;
QemuOpts *opts = NULL;
Error *local_err = NULL;
const QDictEntry *e;
Visitor *v;
@ -636,11 +635,9 @@ static BlockdevOptionsSsh *ssh_parse_options(QDict *options, Error **errp)
goto fail;
}
visit_type_BlockdevOptionsSsh(v, NULL, &result, &local_err);
visit_type_BlockdevOptionsSsh(v, NULL, &result, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!result) {
goto fail;
}

7
block/vdi.c
View file

@ -906,7 +906,6 @@ static int coroutine_fn vdi_co_create_opts(BlockDriver *drv,
uint64_t block_size = DEFAULT_CLUSTER_SIZE;
bool is_static = false;
Visitor *v;
Error *local_err = NULL;
int ret;
/* Parse options and convert legacy syntax.
@ -957,11 +956,9 @@ static int coroutine_fn vdi_co_create_opts(BlockDriver *drv,
ret = -EINVAL;
goto done;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto done;
}

7
block/vhdx.c
View file

@ -2064,7 +2064,6 @@ static int coroutine_fn vhdx_co_create_opts(BlockDriver *drv,
QDict *qdict;
Visitor *v;
BlockDriverState *bs = NULL;
Error *local_err = NULL;
int ret;
static const QDictRenames opt_renames[] = {
@ -2105,11 +2104,9 @@ static int coroutine_fn vhdx_co_create_opts(BlockDriver *drv,
goto fail;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto fail;
}

7
block/vpc.c
View file

@ -1095,7 +1095,6 @@ static int coroutine_fn vpc_co_create_opts(BlockDriver *drv,
QDict *qdict;
Visitor *v;
BlockDriverState *bs = NULL;
Error *local_err = NULL;
int ret;
static const QDictRenames opt_renames[] = {
@ -1134,11 +1133,9 @@ static int coroutine_fn vpc_co_create_opts(BlockDriver *drv,
goto fail;
}
visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
visit_type_BlockdevCreateOptions(v, NULL, &create_options, errp);
visit_free(v);
if (local_err) {
error_propagate(errp, local_err);
if (!create_options) {
ret = -EINVAL;
goto fail;
}

5
hw/acpi/core.c
View file

@ -239,7 +239,6 @@ static void acpi_table_install(const char unsigned *blob, size_t bloblen,
void acpi_table_add(const QemuOpts *opts, Error **errp)
{
AcpiTableOptions *hdrs = NULL;
Error *err = NULL;
char **pathnames = NULL;
char **cur;
size_t bloblen = 0;
@ -249,11 +248,11 @@ void acpi_table_add(const QemuOpts *opts, Error **errp)
Visitor *v;
v = opts_visitor_new(opts);
visit_type_AcpiTableOptions(v, NULL, &hdrs, &err);
visit_type_AcpiTableOptions(v, NULL, &hdrs, errp);
visit_free(v);
}
if (err) {
if (!hdrs) {
goto out;
}
if (hdrs->has_file == hdrs->has_data) {

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;
}

7
hw/core/numa.c
View file

@ -516,10 +516,10 @@ static int parse_numa(void *opaque, QemuOpts *opts, Error **errp)
Error *err = NULL;
Visitor *v = opts_visitor_new(opts);
visit_type_NumaOptions(v, NULL, &object, &err);
visit_type_NumaOptions(v, NULL, &object, errp);
visit_free(v);
if (err) {
goto end;
if (!object) {
return -1;
}
/* Fix up legacy suffix-less format */
@ -530,7 +530,6 @@ static int parse_numa(void *opaque, QemuOpts *opts, Error **errp)
set_numa_options(ms, object, &err);
end:
qapi_free_NumaOptions(object);
if (err) {
error_propagate(errp, err);

21
monitor/monitor.c
View file

@ -657,25 +657,18 @@ int monitor_init_opts(QemuOpts *opts, Error **errp)
{
Visitor *v;
MonitorOptions *options;
Error *local_err = NULL;
int ret;
v = opts_visitor_new(opts);
visit_type_MonitorOptions(v, NULL, &options, &local_err);
visit_type_MonitorOptions(v, NULL, &options, errp);
visit_free(v);
if (local_err) {
goto out;
}
monitor_init(options, true, &local_err);
qapi_free_MonitorOptions(options);
out:
if (local_err) {
error_propagate(errp, local_err);
if (!options) {
return -1;
}
return 0;
ret = monitor_init(options, true, errp);
qapi_free_MonitorOptions(options);
return ret;
}
QemuOptsList qemu_mon_opts = {