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| author | Gonglei | 2014-09-30 08:10:32 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2014-09-30 11:09:12 +0200 |
| commit | e77ca8b92af8a5213897331d676089e8919f383d (patch) | |
| tree | db147df75b79e14e4540ab3ae0837403cece9b6d /hw | |
| parent | virtio-serial: use aliases instead of duplicate qdev properties (diff) | |
| download | qemu-e77ca8b92af8a5213897331d676089e8919f383d.tar.gz qemu-e77ca8b92af8a5213897331d676089e8919f383d.tar.xz qemu-e77ca8b92af8a5213897331d676089e8919f383d.zip | |
virtio-serial: fix virtio-serial 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-serial 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')
| -rw-r--r-- | hw/s390x/s390-virtio-bus.c | 1 | ||||
| -rw-r--r-- | hw/s390x/virtio-ccw.c | 1 | ||||
| -rw-r--r-- | hw/virtio/virtio-pci.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c index 31f5286e3c..422402e564 100644 --- a/hw/s390x/s390-virtio-bus.c +++ b/hw/s390x/s390-virtio-bus.c @@ -227,6 +227,7 @@ static void s390_virtio_serial_instance_init(Object *obj) object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_SERIAL); object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); qdev_alias_all_properties(DEVICE(&dev->vdev), obj); + object_unref(OBJECT(&dev->vdev)); } static int s390_virtio_scsi_init(VirtIOS390Device *s390_dev) diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index 271104d049..5d7f3a6af7 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -853,6 +853,7 @@ static void virtio_ccw_serial_instance_init(Object *obj) object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_SERIAL); object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); qdev_alias_all_properties(DEVICE(&dev->vdev), obj); + object_unref(OBJECT(&dev->vdev)); } static int virtio_ccw_balloon_init(VirtioCcwDevice *ccw_dev) diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 3c1f37bfe4..4446d79269 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1410,6 +1410,7 @@ static void virtio_serial_pci_instance_init(Object *obj) object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_SERIAL); object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); qdev_alias_all_properties(DEVICE(&dev->vdev), obj); + object_unref(OBJECT(&dev->vdev)); } static const TypeInfo virtio_serial_pci_info = { |