From c7faa2045975c7fab6005b9f46b818616a8fec24 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 15 Oct 2014 10:22:32 +1030 Subject: [PATCH] virtio_console: enable VQs early on restore virtio spec requires drivers to set DRIVER_OK before using VQs. This is set automatically after resume returns, virtio console violated this rule by adding inbufs, which causes the VQ to be used directly within restore. To fix, call virtio_device_ready before using VQs. Signed-off-by: Michael S. Tsirkin Signed-off-by: Rusty Russell --- drivers/char/virtio_console.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index d0f25bdc7ba5e..bfa640023e648 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -2184,6 +2184,8 @@ static int virtcons_restore(struct virtio_device *vdev) if (ret) return ret; + virtio_device_ready(portdev->vdev); + if (use_multiport(portdev)) fill_queue(portdev->c_ivq, &portdev->c_ivq_lock); -- 2.39.5