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qdev: Drop misleading qdev_free() function

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The qdev_free() function name is misleading since all the function does
is unlink the device from its parent.  The device is not necessarily
freed.

The device will be freed when its QObject refcount reaches zero.  It is
usual for the parent (bus) to hold the final reference but there are
cases where something else holds a reference so "free" is a misleading
name.

Call object_unparent(obj) directly instead of having a qdev wrapper
function.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Stefan Hajnoczi 2013-09-11 14:54:09 +02:00 • committed by Andreas Färber
parent ee6abeb6ec
commit 02a5c4c974
15 changed files with 21 additions and 29 deletions
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4
hw/virtio/virtio-bus.c
View file

@ -67,7 +67,6 @@ void virtio_bus_reset(VirtioBusState *bus)
/* Destroy the VirtIODevice */
void virtio_bus_destroy_device(VirtioBusState *bus)
{
DeviceState *qdev;
BusState *qbus = BUS(bus);
VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus);
DPRINTF("%s: remove device.\n", qbus->name);
@ -76,8 +75,7 @@ void virtio_bus_destroy_device(VirtioBusState *bus)
if (klass->device_unplug != NULL) {
klass->device_unplug(qbus->parent);
}
qdev = DEVICE(bus->vdev);
qdev_free(qdev);
object_unparent(OBJECT(bus->vdev));
bus->vdev = NULL;
}
}