[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH for 1.2] qom: object_delete should unparent the obje
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH for 1.2] qom: object_delete should unparent the object first |
Date: |
Wed, 22 Aug 2012 23:09:46 +0200 |
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 <address@hidden>
---
hw/acpi_piix4.c | 1 -
hw/qdev.c | 2 --
hw/shpc.c | 1 -
hw/xen_platform.c | 3 ---
qom/object.c | 5 ++---
5 file modificati, 2 inserzioni(+), 10 rimozioni(-)
diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c
index 0aace60..72d6e5c 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);
}
}
diff --git a/hw/qdev.c b/hw/qdev.c
index b5b74b9..b5a52ac 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -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;
}
diff --git a/hw/shpc.c b/hw/shpc.c
index 6b9884d..a5baf24 100644
--- a/hw/shpc.c
+++ b/hw/shpc.c
@@ -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 c1fe984..0d6c2ff 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 a552be2..e3e9242 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);
}
--
1.7.11.2
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Qemu-devel] [PATCH for 1.2] qom: object_delete should unparent the object first,
Paolo Bonzini <=