Messages in this thread | | | From | Grant Likely <> | Subject | Re: [PATCH] kernel/irq/irqdomain.c: before use 'irq_data', need check it whether valid. | Date | Wed, 05 Jun 2013 23:41:47 +0100 |
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On Tue, 14 May 2013 19:02:45 +0800, Chen Gang <gang.chen@asianux.com> wrote: > > Since irq_data may be NULL, if so, we WARN_ON(), and continue, 'hwirq' > which related with 'irq_data' has to initialize later, or it will cause > issue. > > Signed-off-by: Chen Gang <gang.chen@asianux.com>
Applied, thanks.
g.
> --- > kernel/irq/irqdomain.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) > > diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c > index af804b5..61abbfa 100644 > --- a/kernel/irq/irqdomain.c > +++ b/kernel/irq/irqdomain.c > @@ -400,11 +400,12 @@ static void irq_domain_disassociate_many(struct irq_domain *domain, > while (count--) { > int irq = irq_base + count; > struct irq_data *irq_data = irq_get_irq_data(irq); > - irq_hw_number_t hwirq = irq_data->hwirq; > + irq_hw_number_t hwirq; > > if (WARN_ON(!irq_data || irq_data->domain != domain)) > continue; > > + hwirq = irq_data->hwirq; > irq_set_status_flags(irq, IRQ_NOREQUEST); > > /* remove chip and handler */ > -- > 1.7.7.6
-- Grant Likely, B.Sc, P.Eng. Secret Lab Technologies, Ltd.
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