linux-kernel - Re: ALSA: intel8x0: div by zero in snd_intel8x0

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Date:   Thu, 8 Jul 2021 19:12:17 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Max Filippov <jcmvbkbc@...il.com>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        alsa-devel@...a-project.org, Leon Romanovsky <leon@...nel.org>,
        Takashi Iwai <tiwai@...e.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: Re: ALSA: intel8x0: div by zero in snd_intel8x0_update()

On (21/07/08 11:00), Takashi Iwai wrote:
> > > --- a/sound/pci/intel8x0.c
> > > +++ b/sound/pci/intel8x0.c
> > > @@ -694,7 +694,7 @@ static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ich
> > >         int status, civ, i, step;
> > >         int ack = 0;
> > >
> > > -       if (!ichdev->prepared || ichdev->suspended)
> > > +       if (!(ichdev->prepared || ichdev->in_measurement) || ichdev->suspended)
> > 
> > There's no ichdev::in_measurement, but if replaced with
> > chip->in_measurement it indeed fixes my issue.
> 
> One must compile the code before sending out :-<
> 
> > So with this change:
> > Tested-by: Max Filippov <jcmvbkbc@...il.com>
> 
> Great, thanks for quick testing, I'll prepare the fix patch now.

Tested-by: Sergey Senozhatsky <senozhatsky@...omium.org>