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 <stefa...@redhat.com>
---
hw/s390x/s390-virtio-bus.c | 1 +
hw/s390x/virtio-ccw.c | 1 +
hw/virtio/virtio-pci.c | 1 +
3 files changed, 3 insertions(+)
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index 064947b..1996c53 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -191,6 +191,7 @@ static void s390_virtio_blk_instance_init(Object *obj)
VirtIOBlkS390 *dev = VIRTIO_BLK_S390(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));
}
static int s390_virtio_serial_init(VirtIOS390Device *s390_dev)
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index ba62dad..b80deb6 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -739,6 +739,7 @@ static void virtio_ccw_blk_instance_init(Object *obj)
VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(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));
}
static int virtio_ccw_serial_init(VirtioCcwDevice *ccw_dev)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index ba86e1c..44421c8 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1106,6 +1106,7 @@ 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));
}
static const TypeInfo virtio_blk_pci_info = {
--
1.8.5.3
