On Mon, 28 Aug 2006 14:32:39 -0700
john stultz <[email protected]> wrote:
> Apparently some systems export valid HPET addresses, but hpet_enable()
> fails. Then when the HPET clocksource starts up, it only checks for a
> valid HPET address, and the result is a system where time does not
> advance.
>
> See http://bugme.osdl.org/show_bug.cgi?id=7062 for details.
>
> This patch just makes sure we better check that the HPET is functional
> before registering the HPET clocksource.
>
> Signed-off-by: John Stultz <[email protected]>
>
> diff --git a/arch/i386/kernel/hpet.c b/arch/i386/kernel/hpet.c
> index c6737c3..17647a5 100644
> --- a/arch/i386/kernel/hpet.c
> +++ b/arch/i386/kernel/hpet.c
> @@ -35,7 +35,7 @@ static int __init init_hpet_clocksource(
> void __iomem* hpet_base;
> u64 tmp;
>
> - if (!hpet_address)
> + if (!is_hpet_enabled())
> return -ENODEV;
>
> /* calculate the hpet address: */
Thanks. This would be a 2.6.18 thing, wouldn't it?
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