| Message ID | 1413114332-626-14-git-send-email-mst@redhat.com |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index b585b47..6ebe8f6 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1449,6 +1449,8 @@ static int add_port(struct ports_device *portdev, u32 id) spin_lock_init(&port->outvq_lock); init_waitqueue_head(&port->waitqueue); + virtio_enable_vqs_early(portdev->vdev); + /* Fill the in_vq with buffers so the host can send us data. */ nr_added_bufs = fill_queue(port->in_vq, &port->inbuf_lock); if (!nr_added_bufs) {
virtio spec requires drivers to set DRIVER_OK before using VQs. This is set automatically after probe returns, virtio console violated this rule by adding inbufs, which causes the VQ to be used directly within probe. To fix, call virtio_enable_vqs_early before using VQs. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- drivers/char/virtio_console.c | 2 ++ 1 file changed, 2 insertions(+)