[Skiboot] [PATCH] BMC/PCI: Check slot tables against detected devices

[Russell Currey]

On Tue, 2016-12-13 at 13:14 +1100, Stewart Smith wrote:
> Russell Currey <ruscur at russell.cc> writes:
> > > +		case st_builtin_dev:
> > > +			if (!phb)
> > > +				break;
> > > +			phb_lock(phb);
> > > +			dev = pci_find_dev_by_location(phb, ent-
> > > >location);
> > > +			phb_unlock(phb);
> > 
> > Why does this require a lock?
> 
> It may not. By this time during boot we should be all good and no longer
> be touching anything. An abundance of caution perhaps?

Just curious because I couldn't see a specific reason, I think it's fine