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| author | Gonglei <arei.gonglei@huawei.com> | 2014-09-30 14:10:35 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-09-30 11:09:31 +0200 |
| commit | 91ba21208839643603e7f7fa5864723c3f371ebe (patch) | |
| tree | 3e347c66549490c3e8d5fe0683475064dbd745d7 | |
| parent | 352fa88dfb2e9c72fa2a1506acb39f349d4befbf (diff) | |
| download | qemu-91ba21208839643603e7f7fa5864723c3f371ebe.tar.gz qemu-91ba21208839643603e7f7fa5864723c3f371ebe.tar.bz2 qemu-91ba21208839643603e7f7fa5864723c3f371ebe.zip | |
virtio-balloon: fix virtio-balloon 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-balloon 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>
| -rw-r--r-- | hw/s390x/virtio-ccw.c | 2 | ||||
| -rw-r--r-- | hw/virtio/virtio-pci.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index de0764de48..c074f64e92 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -900,7 +900,7 @@ static void virtio_ccw_balloon_instance_init(Object *obj) VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BALLOON); object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); - + object_unref(OBJECT(&dev->vdev)); object_property_add(obj, "guest-stats", "guest statistics", balloon_ccw_stats_get_all, NULL, NULL, dev, NULL); diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 40652a7481..62f84c4ac0 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1325,7 +1325,7 @@ static void virtio_balloon_pci_instance_init(Object *obj) VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BALLOON); object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); - + object_unref(OBJECT(&dev->vdev)); object_property_add(obj, "guest-stats", "guest statistics", balloon_pci_stats_get_all, NULL, NULL, dev, NULL); |