[PATCH] drm/i915/gvt: Add missing vfio_unregister_group_dev() call

[Jason Gunthorpe]

On Wed, Oct 05, 2022 at 02:17:17PM -0600, Alex Williamson wrote:

> > diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
> > index 41bba40feef8f4..9003145adb5a93 100644
> > --- a/drivers/gpu/drm/i915/gvt/kvmgt.c
> > +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
> > @@ -1615,6 +1615,7 @@ static void intel_vgpu_remove(struct mdev_device *mdev)
> >  	if (WARN_ON_ONCE(vgpu->attached))
> >  		return;
> >  
> > +	vfio_unregister_group_dev(&vgpu->vfio_device);
> >  	vfio_put_device(&vgpu->vfio_device);
> >  }
> >  
> > 
> > base-commit: c72e0034e6d4c36322d958b997d11d2627c6056c
> 
> This is marked for stable, but I think the stable backport for
> existing kernels is actually:

Yes probably, this patch won't apply so if anyone wants to see it in
the stable series they need to follow the process to send the reworked
version.

Jason