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Date:   Wed, 23 Mar 2022 09:49:52 +0100
From:   Stefano Garzarella <>
Cc:     Stefan Hajnoczi <>,
        Paolo Abeni <>,
        Arseny Krasnov <>,
        "David S. Miller" <>,,,,
        Stefano Garzarella <>,
        "Michael S. Tsirkin" <>, Asias He <>,
        Jakub Kicinski <>
Subject: [PATCH net v2 1/3] vsock/virtio: enable VQs early on probe

virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after probe returns, but virtio-vsock
driver uses VQs in the probe function to fill rx and event VQs
with new buffers.

Let's fix this, calling virtio_device_ready() before using VQs
in the probe function.

Fixes: 0ea9e1d3a9e3 ("VSOCK: Introduce virtio_transport.ko")
Signed-off-by: Stefano Garzarella <>
 net/vmw_vsock/virtio_transport.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index 5afc194a58bb..b1962f8cd502 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -622,6 +622,8 @@ static int virtio_vsock_probe(struct virtio_device *vdev)
 	INIT_WORK(&vsock->event_work, virtio_transport_event_work);
 	INIT_WORK(&vsock->send_pkt_work, virtio_transport_send_pkt_work);
+	virtio_device_ready(vdev);
 	vsock->tx_run = true;

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