On Fri, 2009-04-24 at 11:24 +0800, Len Brown wrote: > From: Len Brown <len.brown@xxxxxxxxx> > Subject: [PATCH] ACPI: prevent processor.max_cstate=0 boot crash > > As processor.max_cstate is an init-time-only modparam, > sanity checking it at init-time is sufficient. > > http://bugzilla.kernel.org/show_bug.cgi?id=13142 This is also OK. And it is easier. Thanks. > > Signed-off-by: Len Brown <len.brown@xxxxxxxxx> > --- > drivers/acpi/processor_idle.c | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c > index 6fe1214..436127e 100644 > --- a/drivers/acpi/processor_idle.c > +++ b/drivers/acpi/processor_idle.c > @@ -1037,6 +1037,9 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr) > dev->states[i].desc[0] = '\0'; > } > > + if (max_cstate == 0) > + max_cstate = 1; > + > for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) { > cx = &pr->power.states[i]; > state = &dev->states[count]; -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
