Re: [PATCH v1] staging: greybus: audio: fix uninitialized value issue

[Vaibhav Agarwal]

On Mon, Aug 10, 2020 at 8:34 PM Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
>
> On Thu, Aug 06, 2020 at 09:51:57PM +0530, Vaibhav Agarwal wrote:
> > diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
> > index 2f9fdbdcd547..4b914d0edef2 100644
> > --- a/drivers/staging/greybus/audio_topology.c
> > +++ b/drivers/staging/greybus/audio_topology.c
> > @@ -456,6 +456,13 @@ static int gbcodec_mixer_dapm_ctl_put(struct snd_kcontrol *kcontrol,
> >       val = ucontrol->value.integer.value[0] & mask;
> >       connect = !!val;
> >
> > +     ret = gb_pm_runtime_get_sync(bundle);
> > +     if (ret)
> > +             return ret;
> > +
> > +     ret = gb_audio_gb_get_control(module->mgmt_connection, data->ctl_id,
> > +                                   GB_AUDIO_INVALID_INDEX, &gbvalue);
>
>
> We need to check "ret" after this.

Oops, my bad. Thanks Dan for reporting this. I'll share an updated patch soon.

--
regards,
vaibhav
>
> > +
> >       /* update ucontrol */
> >       if (gbvalue.value.integer_value[0] != val) {
> >               for (wi = 0; wi < wlist->num_widgets; wi++) {
> > @@ -466,16 +473,10 @@ static int gbcodec_mixer_dapm_ctl_put(struct snd_kcontrol *kcontrol,
>
> regards,
> dan carpenter
>