From mboxrd@z Thu Jan  1 00:00:00 1970
From: Juri Lelli <juri.lelli-5wv7dgnIgG8@public.gmane.org>
Subject: Re: [PATCH v3 3/9] arm: fix return value of parse_cpu_capacity
Date: Wed, 29 Mar 2017 09:06:03 +0100
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To: Vincent Guittot <vincent.guittot-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: linux-kernel <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, LAK <linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>, "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>, Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>, Sudeep Holla <sudeep.holla-5wv7dgnIgG8@public.gmane.org>, Lorenzo Pieralisi <lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>, Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>, Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>, Morten Rasmussen <morten.rasmussen-5wv7dgnIgG8@public.gmane.org>, Dietmar Eggemann <dietmar.eggemann-5wv7dgnIgG8@public.gmane.org>, Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, "gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org" <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
List-Id: devicetree@vger.kernel.org

On 29/03/17 09:37, Vincent Guittot wrote:
> On 27 March 2017 at 15:18, Juri Lelli <juri.lelli-5wv7dgnIgG8@public.gmane.org> wrote:
> > parse_cpu_capacity() has to return 0 on failure, but it currently returns
> > 1 instead if raw_capacity kcalloc failed.
> >
> > Fix it by removing the negation of the return value.
> >
> > Cc: Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
> > Reported-by: Morten Rasmussen <morten.rasmussen-5wv7dgnIgG8@public.gmane.org>
> > Fixes: 06073ee26775 ('ARM: 8621/3: parse cpu capacity-dmips-mhz from DT')
> > Signed-off-by: Juri Lelli <juri.lelli-5wv7dgnIgG8@public.gmane.org>
> > ---
> >  arch/arm/kernel/topology.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
> > index f8a3ab82e77f..4e4af809606a 100644
> > --- a/arch/arm/kernel/topology.c
> > +++ b/arch/arm/kernel/topology.c
> > @@ -166,7 +166,7 @@ static int __init parse_cpu_capacity(struct device_node *cpu_node, int cpu)
> >                         if (!raw_capacity) {
> >                                 pr_err("cpu_capacity: failed to allocate memory for raw capacities\n");
> >                                 cap_parsing_failed = true;
> > -                               return !ret;
> > +                               return ret;
> 
> Why not directly returning 0 ? whatever the value of ret, the parse of
> cpu capacity has failed in this case
> 

Sure, can change that.

Thanks,

- Juri
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