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qdev-monitor: Propagate errors through qdev_device_add()

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Also polish an error message while I'm touching the line anyway,

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Markus Armbruster 2015-03-12 14:00:41 +01:00
parent 4caa489d13
commit f006cf7fa9
3 changed files with 21 additions and 24 deletions
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2
include/monitor/qdev.h
View File

@ -11,6 +11,6 @@ void hmp_info_qdm(Monitor *mon, const QDict *qdict);
void hmp_info_qom_tree(Monitor *mon, const QDict *dict);
int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data);
int qdev_device_help(QemuOpts *opts);
DeviceState *qdev_device_add(QemuOpts *opts);
DeviceState *qdev_device_add(QemuOpts *opts, Error **errp);
#endif

32
qdev-monitor.c
View File

@ -516,7 +516,7 @@ static BusState *qbus_find(const char *path, Error **errp)
return bus;
}
DeviceState *qdev_device_add(QemuOpts *opts)
DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
{
DeviceClass *dc;
const char *driver, *path, *id;
@ -526,44 +526,38 @@ DeviceState *qdev_device_add(QemuOpts *opts)
driver = qemu_opt_get(opts, "driver");
if (!driver) {
qerror_report(QERR_MISSING_PARAMETER, "driver");
error_set(errp, QERR_MISSING_PARAMETER, "driver");
return NULL;
}
/* find driver */
dc = qdev_get_device_class(&driver, &err);
if (err) {
qerror_report_err(err);
error_free(err);
dc = qdev_get_device_class(&driver, errp);
if (!dc) {
return NULL;
}
/* find bus */
path = qemu_opt_get(opts, "bus");
if (path != NULL) {
bus = qbus_find(path, &err);
bus = qbus_find(path, errp);
if (!bus) {
qerror_report_err(err);
error_free(err);
return NULL;
}
if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"Device '%s' can't go on a %s bus",
error_setg(errp, "Device '%s' can't go on %s bus",
driver, object_get_typename(OBJECT(bus)));
return NULL;
}
} else if (dc->bus_type != NULL) {
bus = qbus_find_recursive(sysbus_get_default(), NULL, dc->bus_type);
if (!bus || qbus_is_full(bus)) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"No '%s' bus found for device '%s'",
error_setg(errp, "No '%s' bus found for device '%s'",
dc->bus_type, driver);
return NULL;
}
}
if (qdev_hotplug && bus && !qbus_is_hotpluggable(bus)) {
qerror_report(QERR_BUS_NO_HOTPLUG, bus->name);
error_set(errp, QERR_BUS_NO_HOTPLUG, bus->name);
return NULL;
}
@ -592,7 +586,7 @@ DeviceState *qdev_device_add(QemuOpts *opts)
/* set properties */
if (qemu_opt_foreach(opts, set_property, dev, &err)) {
qerror_report_err(err);
error_propagate(errp, err);
object_unparent(OBJECT(dev));
object_unref(OBJECT(dev));
return NULL;
@ -601,12 +595,10 @@ DeviceState *qdev_device_add(QemuOpts *opts)
dev->opts = opts;
object_property_set_bool(OBJECT(dev), true, "realized", &err);
if (err != NULL) {
qerror_report_err(err);
error_free(err);
error_propagate(errp, err);
dev->opts = NULL;
object_unparent(OBJECT(dev));
object_unref(OBJECT(dev));
qerror_report(QERR_DEVICE_INIT_FAILED, driver);
return NULL;
}
return dev;
@ -779,8 +771,10 @@ int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
qemu_opts_del(opts);
return 0;
}
dev = qdev_device_add(opts);
dev = qdev_device_add(opts, &local_err);
if (!dev) {
qerror_report_err(local_err);
error_free(local_err);
qemu_opts_del(opts);
return -1;
}

7
vl.c
View File

@ -2276,11 +2276,14 @@ static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
{
Error *err = NULL;
DeviceState *dev;
dev = qdev_device_add(opts);
if (!dev)
dev = qdev_device_add(opts, &err);
if (!dev) {
error_report_err(err);
return -1;
}
object_unref(OBJECT(dev));
return 0;
}