Re: [PATCH 1/4] sparse irq: protect irq_to_desc againstirq_free_descs

[Thomas Gleixner]

On Wed, 25 May 2011, Milton Miller wrote:
> On Wed, 25 May 2011 about 10:14:20 +0200 (CEST), Thomas Gleixner wrote:
> > 
> > The reason why nobody ever noticed is that the free happens in the
> > teardown path of PCI devices and at this point nothing accesses that
> > irq anymore.
> 
> I'm not talking about the irq_desc that is being removed from the
> tree, instead I'm talking about the internal elements in the
> radix tree that are used to find the pointers at the bottom of
> the tree (that in turn point to the irq_desc in the irq tree case).

Oops, did not think about that one :)

-ENOTENOUGHCOFFEE

Thanks,

	tglx
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