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spapr_drc: fix realize and unrealize

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If object_property_add_alias() returns an error in realize(), we should
propagate it to the caller and certainly not unref the DRC.

Same thing goes for unrealize(). Since object_property_del() is the last
call, we can even get rid of the intermediate Error *.

And finally, unrealize() should undo all registrations performed by
realize().

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2017-07-27 15:45:47 +02:00 committed by David Gibson
parent a588c4985e
commit bf26ae32a9
1 changed files with 7 additions and 10 deletions
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17
hw/ppc/spapr_drc.c
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@ -506,11 +506,11 @@ static void realize(DeviceState *d, Error **errp)
trace_spapr_drc_realize_child(spapr_drc_index(drc), child_name);
object_property_add_alias(root_container, link_name,
drc->owner, child_name, &err);
if (err) {
error_report_err(err);
object_unref(OBJECT(drc));
}
g_free(child_name);
if (err) {
error_propagate(errp, err);
return;
}
vmstate_register(DEVICE(drc), spapr_drc_index(drc), &vmstate_spapr_drc,
drc);
qemu_register_reset(drc_reset, drc);
@ -522,16 +522,13 @@ static void unrealize(DeviceState *d, Error **errp)
sPAPRDRConnector *drc = SPAPR_DR_CONNECTOR(d);
Object *root_container;
char name[256];
Error *err = NULL;
trace_spapr_drc_unrealize(spapr_drc_index(drc));
qemu_unregister_reset(drc_reset, drc);
vmstate_unregister(DEVICE(drc), &vmstate_spapr_drc, drc);
root_container = container_get(object_get_root(), DRC_CONTAINER_PATH);
snprintf(name, sizeof(name), "%x", spapr_drc_index(drc));
object_property_del(root_container, name, &err);
if (err) {
error_report_err(err);
object_unref(OBJECT(drc));
}
object_property_del(root_container, name, errp);
}
sPAPRDRConnector *spapr_dr_connector_new(Object *owner, const char *type,