[PATCH 5/8] staging: vme: add functions for bridge module refcounting

Manohar Vanga manohar.vanga at cern.ch
Tue Aug 9 14:35:09 UTC 2011


Hey Martyn,

> > I am not really an expert in these matters but would something like a sysfs file
> > be a cleaner approach to providing information on allocated resources within the
> > driver?
> 
> That would probably be a better idea.

Great! We'll add a sysfs file for this :)

> >     int ret = 0;
> >     ...
> >     vme_bridge_get(bridge);
> >     if (driver->probe)
> >             ret = driver->probe(vdev);
> >     if (ret)
> >         vme_bridge_put(bridge);
> >     return ret;
> 
> After looking at the PCI and RapidIO subsystems, I think this is probably the
> correct approach. I guess the only quiestion then is at which point is
> vme_bridge_put() called assuming the probe is successful. I guess at module
> unload time, though I haven't checked in the PCI and RapidIO code.

vme_bus_remove()? If it's incorrect, we can always change this later.

If we are agreed on this, let me know and I will make the changes and
resend the patches today.

> (Thank you for your patience)

(no problem)!

Thanks!

--
/manohar



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