diff options
| -rw-r--r-- | hw/virtio/virtio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index e487e36cda..bf8a644677 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -288,6 +288,10 @@ void virtio_queue_set_notification(VirtQueue *vq, int enable) { vq->notification = enable; + if (!vq->vring.desc) { + return; + } + rcu_read_lock(); if (virtio_vdev_has_feature(vq->vdev, VIRTIO_RING_F_EVENT_IDX)) { vring_set_avail_event(vq, vring_avail_idx(vq)); |