motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 00:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

virtio: fix virtio-blk child refcount in transports

Browse source 
object_initialize() leaves the object with a refcount of 1.
object_property_add_child() adds its own reference which is dropped
again when the property is deleted.

The upshot of this is that we always have a refcount >= 1.  Upon hot
unplug the virtio-blk child is not finalized!

Drop our reference after the child property has been added to the
parent.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
This commit is contained in:
Stefan Hajnoczi 2014-06-18 17:58:35 +08:00
parent f7fedda84a
commit c5d49db446
3 changed files with 3 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
hw/virtio/virtio-pci.c
View file

@ -1101,6 +1101,7 @@ static void virtio_blk_pci_instance_init(Object *obj)
VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj);
object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BLK);
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
object_unref(OBJECT(&dev->vdev));
qdev_alias_all_properties(DEVICE(&dev->vdev), obj);
}