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hw/virtio: Fix leak of host-notifier memory-region

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If call virtio_queue_set_host_notifier_mr fails, should free
host-notifier memory-region.

Fixes: 44866521bd ("vhost-user: support registering external host notifiers")
Signed-off-by: Yajun Wu <yajunw@nvidia.com>
Message-Id: <1629077555-19907-1-git-send-email-yajunw@nvidia.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Yajun Wu authored and Michael S. Tsirkin committed 2021-09-04 09:07:45 -04:00
1 parent e6db5df7e2
commit 1f89d3b91e
1 file changed
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hw/virtio/vhost-user.c
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@@ -1474,6 +1474,7 @@ static int vhost_user_slave_handle_vring_host_notifier(struct vhost_dev *dev,
g_free(name);
if (virtio_queue_set_host_notifier_mr(vdev, queue_idx, &n->mr, true)) {
object_unparent(OBJECT(&n->mr));
munmap(addr, page_size);
return -1;
}