From 352fa88dfb2e9c72fa2a1506acb39f349d4befbf Mon Sep 17 00:00:00 2001 From: Gonglei Date: Tue, 30 Sep 2014 14:10:34 +0800 Subject: 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 Reviewed-by: Cornelia Huck Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini --- hw/virtio/virtio-pci.c | 1 + 1 file changed, 1 insertion(+) (limited to 'hw/virtio/virtio-pci.c') 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, -- cgit 1.4.1