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Re: [PATCH] virtio-input: reset device during remove

From "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH] virtio-input: reset device during remove
Date 2015-08-05 10:00 +0200
Message-ID <pU1Me-3p8-7@gated-at.bofh.it> (permalink)
References <pU1jc-2Rg-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Aug 05, 2015 at 03:20:18PM +0800, Jason Wang wrote:
> Spec requires a device reset during cleanup, so do it and avoid warn
> in virtio core.
> 
> Signed-off-by: Jason Wang <jasowang@redhat.com>

OK but now that I look at this driver, that's not enough.

Need to also detach and free unused buffers, otherwise
we leak memory in evt and sts queues.



> ---
>  drivers/virtio/virtio_input.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c
> index 60e2a16..6222f9b 100644
> --- a/drivers/virtio/virtio_input.c
> +++ b/drivers/virtio/virtio_input.c
> @@ -320,6 +320,7 @@ static void virtinput_remove(struct virtio_device *vdev)
>  	spin_unlock_irqrestore(&vi->lock, flags);
>  
>  	input_unregister_device(vi->idev);
> +	vdev->config->reset(vdev);
>  	vdev->config->del_vqs(vdev);
>  	kfree(vi);
>  }
> -- 
> 2.1.4
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Thread

[PATCH] virtio-input: reset device during remove Jason Wang <jasowang@redhat.com> - 2015-08-05 09:30 +0200
  Re: [PATCH] virtio-input: reset device during remove "Michael S. Tsirkin" <mst@redhat.com> - 2015-08-05 10:00 +0200
    Re: [PATCH] virtio-input: reset device during remove Jason Wang <jasowang@redhat.com> - 2015-08-05 10:20 +0200

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