RE: [PATCH 10/15] vfio/fsl-mc: Use the new device life cycle helpers

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> From: Jason Gunthorpe <jgg@xxxxxxxx>
> Sent: Wednesday, August 31, 2022 8:23 AM
> 
> On Sun, Aug 28, 2022 at 01:10:32AM +0800, Kevin Tian wrote:
> > From: Yi Liu <yi.l.liu@xxxxxxxxx>
> >
> > Export symbol of vfio_release_device_set() so fsl-mc @init can handle
> > the error path cleanly instead of assuming certain vfio core API can
> > help release device_set afterwards.
> 
> I think you should leave it as is, the "device_set" cleanup is just
> something handled completely internally to vfio
> 
> If ops->init fails then we expect the core code to clean the
> device_set, and it does because it calls vfio_init_device() already.
> 
> Having a single weirdly placed release in the driver is pretty
> confusing, IMHO.
> 

I considered both. In the end I chose the current way being it's
clearer if just looking at @init. But yes having a release called
by driver is also confusing. Probably having a pair of assign/deassign
helpers is more clearer, but I'll not continue this path for unnecessary
complexity.

So I'll leave it as is and add a comment to clarify it.





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