virtio/vhost-scsi: fix virtio-scsi/vhost-scsi child refcount in transports
commit1312f12bcc8911ed99b67227fb9d1607295f71ed
authorGonglei <arei.gonglei@huawei.com>
Tue, 30 Sep 2014 06:10:30 +0000 (30 14:10 +0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 30 Sep 2014 09:08:56 +0000 (30 11:08 +0200)
tree519cbba8c7ae9d6ca976822db7ba7f197ffceb69
parentc39343fd811a22c921fc08e9e6ca62c8e7539264
virtio/vhost-scsi: fix virtio-scsi/vhost-scsi 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-scsi/vhost-scsi 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>
hw/s390x/s390-virtio-bus.c
hw/s390x/virtio-ccw.c
hw/virtio/virtio-pci.c