From: Michael S. Tsirkin <mst@redhat.com>
Date: Thu, 5 Mar 2015 00:15:30 +0000 (+1030)
Subject: virtio_console: init work unconditionally
X-Git-Tag: v3.4.108~74
X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a1429620345f77cbbfb3adc8522d7d212a84d50;p=linux

virtio_console: init work unconditionally

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 <mst@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Zefan Li <lizefan@huawei.com>
---

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index a81f4694f322..82650b4b62a1 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1752,12 +1752,13 @@ static int __devinit virtcons_probe(struct virtio_device *vdev)
 	spin_lock_init(&portdev->ports_lock);
 	INIT_LIST_HEAD(&portdev->ports);
 
+	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);