RE: [PATCH v2] ASoC: Intel: Skylake: Check the kcontrol against NULL

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On 2021-01-20 5:33 PM, Pierre-Louis Bossart wrote:
> On 1/20/21 9:49 AM, Łukasz Majczak wrote:
>> Hi Pierre,
>>
>> Is there anything more to do to get the ACK for this patch?
> 
> Adding Cezary and Amadeusz for feedback, I can't pretend having any sort 
> of knowledge on the Skylake driver internals and topology usage.
> 

Thanks for the CC, Pierre.

...

>>>>
>>>> diff --git a/sound/soc/intel/skylake/skl-topology.c 
>>>> b/sound/soc/intel/skylake/skl-topology.c
>>>> index ae466cd592922..8f0bfda7096a9 100644
>>>> --- a/sound/soc/intel/skylake/skl-topology.c
>>>> +++ b/sound/soc/intel/skylake/skl-topology.c
>>>> @@ -3618,12 +3618,18 @@ static void skl_tplg_complete(struct 
>>>> snd_soc_component *component)
>>>>          int i;
>>>>
>>>>          list_for_each_entry(dobj, &component->dobj_list, list) {
>>>> -               struct snd_kcontrol *kcontrol = dobj->control.kcontrol;
>>>> -               struct soc_enum *se =
>>>> -                       (struct soc_enum *)kcontrol->private_value;
>>>> -               char **texts = dobj->control.dtexts;
>>>> +               struct snd_kcontrol *kcontrol;
>>>> +               struct soc_enum *se;
>>>> +               char **texts;
>>>>                  char chan_text[4];
>>>>
>>>> +               kcontrol = dobj->control.kcontrol;
>>>> +               if (!kcontrol)
>>>> +                       continue;
>>>> +
>>>> +               se = (struct soc_enum *)kcontrol->private_value;
>>>> +               texts = dobj->control.dtexts;
>>>> +
>>>>                  if (dobj->type != SND_SOC_DOBJ_ENUM ||
>>>>                      dobj->control.kcontrol->put !=
>>>>                      skl_tplg_multi_config_set_dmic)

Just checked the history behind this. And must say, I liked Ricardo's
version better. Except for the "= {};" bit which Mark already pointed
out - it should be a separate fix - it's simply more optional

e.g.: 'kcontrol' gets assigned yet 'if' above is not updated accordingly:
s/dobj->control.kcontrol->put/kcontrol->put

Czarek





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