Re: [PATCH] x86: check for valid irq_cfg pointer insmp_irq_move_cleanup_interrupt

[Thomas Gleixner]

On Wed, 23 May 2012, Dimitri Sivanich wrote:

> On Wed, May 23, 2012 at 01:16:36PM -0500, Dimitri Sivanich wrote:
> > In create_irq_nr() there is a window where we have set vector_irq in
> > __assign_irq_vector(), but not yet called irq_set_chip_data() to set the
> > irq_cfg pointer.
> 
> BTW - is there a reason why we're calling irq_set_chip_data() in create_irq_nr()
> rather than in __assign_irq_vector() for the case where irq_cfg is NULL?

We can't nest desc->lock inside vector lock.
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