linux-kernel - Re: [PATCH] opp: avoid uninitialized-variable use

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Message-ID: <CAK8P3a2dADAG9-NnsR8opP++xq6T_BB3C6i-wvkzrKvXNOghiQ@mail.gmail.com>
Date:   Sat, 30 May 2020 14:40:54 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>,
        Georgi Djakov <georgi.djakov@...aro.org>,
        Sibi Sankar <sibis@...eaurora.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] opp: avoid uninitialized-variable use

On Sat, May 30, 2020 at 11:21 AM Viresh Kumar <viresh.kumar@...aro.org> wrote:
> On 29-05-20, 22:17, Arnd Bergmann wrote:
> > An uninitialized pointer is passed into another function but
> > --- a/drivers/opp/core.c
> > +++ b/drivers/opp/core.c
> > @@ -872,7 +872,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
> >                       goto put_opp_table;
> >               }
> >
> > -             ret = _set_opp_bw(opp_table, opp, dev, true);
> > +             ret = _set_opp_bw(opp_table, NULL, dev, true);
> >               if (ret)
> >                       return ret;
> >
>
> Not sure why people are still seeing this, I pushed a fix for this 2
> days back.

I was on next-20200528, which was the first version that was broken for me,
and I sent all my fixes after I had tested them. Since a lot of things
got broken
at once that day, it took me until the end of 20200529 to get it all tested
properly and then send them out.

      Arnd