virtio_console: enable VQs early on restore
authorMichael S. Tsirkin <mst@redhat.com>
Tue, 14 Oct 2014 23:52:32 +0000 (10:22 +1030)
committerRusty Russell <rusty@rustcorp.com.au>
Tue, 14 Oct 2014 23:55:09 +0000 (10:25 +1030)
commit401bbdc901b268113d7c562616feb7fc37492aca
treee16ab52fd1617a004e513c0291bc57831b4a498d
parent52c9cf1ac3d315995e9a65b900bc25e1d8a538b3
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 <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
drivers/char/virtio_console.c