Re: [PATCH 3/8] vfio: add external user support

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Hi Alexy,

On Thu, 27 Jun 2013 15:02:31 +1000 Alexey Kardashevskiy <aik@xxxxxxxxx> wrote:
>
> +/* Allows an external user (for example, KVM) to unlock an IOMMU group */
> +static void vfio_group_del_external_user(struct file *filep)
> +{
> +	struct vfio_group *group = filep->private_data;
> +
> +	BUG_ON(filep->f_op != &vfio_group_fops);

We usually reserve BUG_ON for situations where there is no way to
continue running or continuing will corrupt the running kernel.  Maybe
WARN_ON() and return?

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx

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