Re: [PATCH] ACPI: pass correct parameter toacpi_processor_ffh_cstate_probe_cpu()

From: Wu Fengguang
Date: Mon Mar 16 2009 - 00:44:25 EST


On Mon, Mar 16, 2009 at 10:59:19AM +0800, Len Brown wrote:
> On Thu, 12 Mar 2009, Wu Fengguang wrote:
>
> > This fixes a NULL pointer dereference bug introduced by 6e911954cac.
>
> What tree is this patch on top of?

It's for 2.6.29-rc7-next-20090311. Already fixed in other trees?

Thanks,
Fengguang

> thanks,
> -Len Brown
> Intel Open Source Technology Center
>
> > Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
> > ---
> > diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
> > index 6626e8c..b866b87 100644
> > --- a/arch/x86/kernel/acpi/cstate.c
> > +++ b/arch/x86/kernel/acpi/cstate.c
> > @@ -137,7 +137,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
> > /* Run acpi_processor_ffh_cstate_probe_cpu() on the target CPU */
> >
> > retval = smp_call_function_single(cpu,
> > - acpi_processor_ffh_cstate_probe_cpu, cx, 1);
> > + acpi_processor_ffh_cstate_probe_cpu, &cxcc, 1);
> > if (retval == 0) {
> > retval = cxcc.retval;
> > if (retval == 0) {
> > --
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