We try to disable callbacks on c_ivq even without multiport
even though that vq is not initialized in this configuration.
Fixes: c743d09dbd01 ("virtio: console: Disable callbacks for virtqueues at
start of S4 freeze")
Suggested-by: Mike Galbraith <efa...@gmx.de>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
Hi Mike
if you like, pls send me your Signed-off-by and I'll
change the patch to make you an author.
More importantly, pls let me know whether this helps
resolve the issues about hybernation for you!
drivers/char/virtio_console.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 5da4c8e..d0699c5 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2202,14 +2202,16 @@ static int virtcons_freeze(struct virtio_device *vdev)
vdev->config->reset(vdev);
- virtqueue_disable_cb(portdev->c_ivq);
+ if (use_multiport(portdev))
+ virtqueue_disable_cb(portdev->c_ivq);
cancel_work_sync(&portdev->control_work);
cancel_work_sync(&portdev->config_work);
/*
* Once more: if control_work_handler() was running, it would
* enable the cb as the last step.
*/
- virtqueue_disable_cb(portdev->c_ivq);
+ if (use_multiport(portdev))
+ virtqueue_disable_cb(portdev->c_ivq);
remove_controlq_data(portdev);
list_for_each_entry(port, &portdev->ports, list) {
--
MST
