linux-kernel - Re: [PATCH] PM / Domains: check for negative return from of_count_phandle_with

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Message-ID: <3498199.QxdRYBakzi@vostro.rjw.lan>
Date:   Tue, 01 Nov 2016 05:48:16 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Pavel Machek <pavel@....cz>, Colin King <colin.king@...onical.com>
Cc:     Kevin Hilman <khilman@...libre.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Len Brown <len.brown@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PM / Domains: check for negative return from of_count_phandle_with_args

On Wednesday, October 26, 2016 01:00:08 PM Pavel Machek wrote:
> 
> --zhXaljGHf11kAtnf
> Content-Type: text/plain; charset=us-ascii
> Content-Disposition: inline
> Content-Transfer-Encoding: quoted-printable
> 
> On Tue 2016-10-25 11:14:40, Kevin Hilman wrote:
> > Colin King <colin.king@...onical.com> writes:
> >=20
> > > From: Colin Ian King <colin.king@...onical.com>
> > >
> > > The return from of_count_phandle_with_args can be negative, so we
> > > should avoid kcalloc of a negative count of genpd_power_stat structs
> > > by sanity checking if count is zero or less.
> > >
> > > Signed-off-by: Colin Ian King <colin.king@...onical.com>
> >=20
> > Acked-by: Kevin Hilman <khilman@...libre.com>
> 
> Acked-by: Pavel Machek <pavel@....cz>

Applied, thanks!

Rafael