diff options
| author | Gonglei <arei.gonglei@huawei.com> | 2014-09-30 14:10:34 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-09-30 11:09:24 +0200 |
| commit | 352fa88dfb2e9c72fa2a1506acb39f349d4befbf (patch) | |
| tree | 7a7dfc82da3db4fe8ce69b97274f3fbb88a91acd /hw/virtio | |
| parent | 8ee486ae339f0e5236f4a9ab988fc963edcc73b5 (diff) | |
virtio-rng: fix virtio-rng child refcount in transports
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-rng child is not finalized!
Drop our reference after the child property has been added to the
parent.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio-pci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 2b3a941876..40652a7481 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1525,6 +1525,7 @@ static void virtio_rng_initfn(Object *obj) object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_RNG); object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); qdev_alias_all_properties(DEVICE(&dev->vdev), obj); + object_unref(OBJECT(&dev->vdev)); object_property_add_link(obj, "rng", TYPE_RNG_BACKEND, (Object **)&dev->vdev.conf.rng, qdev_prop_allow_set_link_before_realize, |