diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-08-22 23:09:46 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-08-23 20:19:59 -0500 |
| commit | da5a44e8b0b727681fc33e8d94832d1cae48a788 (patch) | |
| tree | 05d07ea897538eed23cc86e097d43863f577bfeb | |
| parent | 26efaca377e004b79ff50a6e936d029a0c095b8b (diff) | |
qom: object_delete should unparent the object first
object_deinit is only called when the reference count goes to zero,
and yet tries to do an object_unparent. Now, object_unparent
either does nothing or it will decrease the reference count.
Because we know the reference count is zero, the object_unparent
call in object_deinit is useless.
Instead, we need to disconnect the object from its parent just
before we remove the last reference apart from the parent's. This
happens in object_delete. Once we do this, all calls to
object_unparent peppered through QEMU can go away.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | hw/acpi_piix4.c | 1 | ||||
| -rw-r--r-- | hw/qdev.c | 2 | ||||
| -rw-r--r-- | hw/shpc.c | 1 | ||||
| -rw-r--r-- | hw/xen_platform.c | 3 | ||||
| -rw-r--r-- | qom/object.c | 5 |
5 files changed, 2 insertions, 10 deletions
diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c index 0aace60f24..72d6e5c904 100644 --- a/hw/acpi_piix4.c +++ b/hw/acpi_piix4.c @@ -305,7 +305,6 @@ static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots) if (pc->no_hotplug) { slot_free = false; } else { - object_unparent(OBJECT(dev)); qdev_free(qdev); } } @@ -159,7 +159,6 @@ int qdev_init(DeviceState *dev) rc = dc->init(dev); if (rc < 0) { - object_unparent(OBJECT(dev)); qdev_free(dev); return rc; } @@ -243,7 +242,6 @@ void qbus_reset_all_fn(void *opaque) int qdev_simple_unplug_cb(DeviceState *dev) { /* just zap it */ - object_unparent(OBJECT(dev)); qdev_free(dev); return 0; } @@ -253,7 +253,6 @@ static void shpc_free_devices_in_slot(SHPCDevice *shpc, int slot) ++devfn) { PCIDevice *affected_dev = shpc->sec_bus->devices[devfn]; if (affected_dev) { - object_unparent(OBJECT(affected_dev)); qdev_free(&affected_dev->qdev); } } diff --git a/hw/xen_platform.c b/hw/xen_platform.c index c1fe984f07..0d6c2ff8c3 100644 --- a/hw/xen_platform.c +++ b/hw/xen_platform.c @@ -87,9 +87,6 @@ static void unplug_nic(PCIBus *b, PCIDevice *d, void *o) { if (pci_get_word(d->config + PCI_CLASS_DEVICE) == PCI_CLASS_NETWORK_ETHERNET) { - /* Until qdev_free includes a call to object_unparent, we call it here - */ - object_unparent(&d->qdev.parent_obj); qdev_free(&d->qdev); } } diff --git a/qom/object.c b/qom/object.c index a552be258e..e3e9242638 100644 --- a/qom/object.c +++ b/qom/object.c @@ -373,8 +373,6 @@ static void object_deinit(Object *obj, TypeImpl *type) if (type_has_parent(type)) { object_deinit(obj, type_get_parent(type)); } - - object_unparent(obj); } void object_finalize(void *data) @@ -411,8 +409,9 @@ Object *object_new(const char *typename) void object_delete(Object *obj) { + object_unparent(obj); + g_assert(obj->ref == 1); object_unref(obj); - g_assert(obj->ref == 0); g_free(obj); } |