Re: [PATCH linux-next] powerpc/powermac: Add missing of_node_put

From: Nicolas Palix
Date: Sun Dec 07 2008 - 09:09:24 EST

On Sunday 07 December 2008 06:43:33 Stephen Rothwell wrote:
> Hi Paul,
> On Sun, 7 Dec 2008 13:31:00 +1100 Paul Mackerras <paulus@xxxxxxxxx> wrote:
> >
> > I'm really in two minds about applying any of the of_node_put patches
> > that only affect powermacs. The reference counts only matter on
> > platforms where we update the OF device tree at runtime, which is
> > currently only IBM pSeries machines. Since we don't have any hotplug
> > on powermacs, and never will have, the OF device tree is completely
> > static and we don't actually need refcounts on the nodes at all, so
> > who cares if they're a bit higher than they might be?
> >
> > In particular, the VIA whose node we're looking for here is built-in
> > on the motherboard, and there can never be more than one, and it can
> > never be removed.
> I my mind it is about consistent use of the API and good examples for
> people to copy. Also, in about a year you will be presented with the
> same set of patches when a new pair of eyes looks at the same code and
> notices the discrepancy ...
Hi Andrew,

Indeed, there is an updated version of this patch in my second mail
which fixes this issue.

Moreover, there is still a reference count unbalanced with your patch in the
case where the function returns 1.

Nicolas Palix
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