Commit 75fd9edc authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

vhost: fix zcopy reference counting 



Fix get/put refcount imbalance with zero copy,
which caused qemu to hang forever on guest driver unload.

Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 2723feaa

drivers/vhost/vhost.c

+0 −1
Original line number Diff line number Diff line
@@ -1578,7 +1578,6 @@ struct vhost_ubuf_ref *vhost_ubuf_alloc(struct vhost_virtqueue *vq, 
	if (!ubufs)

		return ERR_PTR(-ENOMEM);

	kref_init(&ubufs->kref);

	kref_get(&ubufs->kref);

	init_waitqueue_head(&ubufs->wait);

	ubufs->vq = vq;

	return ubufs;