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

From: Len Brown
Date: Sun Mar 15 2009 - 22:59:49 EST


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?

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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