linux-kernel - Re: [PATCH] virtio-net: fix module unloading

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Message-ID: <20170726154927-mutt-send-email-mst@kernel.org>
Date:   Wed, 26 Jul 2017 15:50:03 +0300
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     Andrew Jones <drjones@...hat.com>, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [PATCH] virtio-net: fix module unloading

On Wed, Jul 26, 2017 at 11:52:07AM +0800, Jason Wang wrote:
> 
> 
> On 2017年07月24日 21:38, Andrew Jones wrote:
> > Unregister the driver before removing multi-instance hotplug
> > callbacks. This order avoids the warning issued from
> > __cpuhp_remove_state_cpuslocked when the number of remaining
> > instances isn't yet zero.
> > 
> > Fixes: 8017c279196a ("net/virtio-net: Convert to hotplug state machine")
> > Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> > Signed-off-by: Andrew Jones <drjones@...hat.com>
> > ---
> >   drivers/net/virtio_net.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> > index 99a26a9efec1..f41ab0ea942a 100644
> > --- a/drivers/net/virtio_net.c
> > +++ b/drivers/net/virtio_net.c
> > @@ -2743,9 +2743,9 @@ module_init(virtio_net_driver_init);
> >   static __exit void virtio_net_driver_exit(void)
> >   {
> > +	unregister_virtio_driver(&virtio_net_driver);
> >   	cpuhp_remove_multi_state(CPUHP_VIRT_NET_DEAD);
> >   	cpuhp_remove_multi_state(virtionet_online);
> > -	unregister_virtio_driver(&virtio_net_driver);
> >   }
> >   module_exit(virtio_net_driver_exit);
> 
> Acked-by: Jason Wang <jasowang@...hat.com>

Thanks for the review!
I merged it before the tag and don't want to rebase.
Sorry about that.

-- 
MST