3.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "Michael S. Tsirkin" <[email protected]>

commit 4f6e24ed9de8634d6471ef86b382cba6d4e57ca8 upstream.

when multiport is off, we don't initialize config work,
but we then cancel uninitialized control_work on freeze.

Signed-off-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: Amit Shah <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/char/virtio_console.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2031,12 +2031,13 @@ static int virtcons_probe(struct virtio_
 
        virtio_device_ready(portdev->vdev);
 
+       INIT_WORK(&portdev->control_work, &control_work_handler);
+
        if (multiport) {
                unsigned int nr_added_bufs;
 
                spin_lock_init(&portdev->c_ivq_lock);
                spin_lock_init(&portdev->c_ovq_lock);
-               INIT_WORK(&portdev->control_work, &control_work_handler);
 
                nr_added_bufs = fill_queue(portdev->c_ivq,
                                           &portdev->c_ivq_lock);


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