linux-kernel - Re: [PATCH] powercap/intel_rapl: fix and tidy up error handling

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Date:   Mon, 28 Nov 2016 09:31:03 -0800
From:   Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Rafael Wysocki <rafael.j.wysocki@...el.com>,
        Marcin Koss <marcin.koss@...el.com>,
        Lukasz Odzioba <lukasz.odzioba@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        jacob.jun.pan@...ux.intel.com
Subject: Re: [PATCH] powercap/intel_rapl: fix and tidy up error handling

On Thu, 24 Nov 2016 22:06:59 +0100
"Rafael J. Wysocki" <rafael@...nel.org> wrote:

> On Wed, Nov 23, 2016 at 8:01 PM, Jacob Pan
> <jacob.jun.pan@...ux.intel.com> wrote:
> > Commit e1399ba20eee ("powercap / RAPL: handle missing MSRs") added
> > contraint_to_pl() function to return index into an array. But it
> > can potentially return -EINVAL if powercap layer sends an out of
> > range constraint ID. This patch adds sanity check.
> >
> > Unnecessary RAPL domain pointer check is removed since it must be
> > initialized before calling rapl_unit_xlate().
> >
> > Reported-by: Odzioba, Lukasz <lukasz.odzioba@...el.com>
> > Reported-by: Koss, Marcin <marcin.koss@...el.com>  
> 
> Does this depend on the Thomas' series only?
> 
yes, it is on top of Thomas' series.
> Also, it looks like a Fixes: tag should be present here.
> 
OK. will add that.
> >
> > Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>  
> 
> Thanks,
> Rafael

[Jacob Pan]