Re: [PATCH v2 10/12] ASoC: SOF: Intel: hda: make sure DAI widget is set up before IPC

[Pierre-Louis Bossart]

>> +static struct sof_ipc_dai_config *hda_dai_update_config(struct snd_soc_dapm_widget *w,
>> +							int channel)
>>  {
>> +	struct snd_sof_widget *swidget = w->dobj.private;
>>  	struct sof_ipc_dai_config *config;
>>  	struct snd_sof_dai *sof_dai;
>> -	struct sof_ipc_reply reply;
>> -	int ret = 0;
>>  
>> -	list_for_each_entry(sof_dai, &hda_stream->sdev->dai_list, list) {
>> -		if (!sof_dai->cpu_dai_name)
>> -			continue;
>> +	if (!swidget) {
>> +		dev_err(swidget->scomp->dev, "error: No private data for widget %s\n", w->name);
> 
> NULL pointer dereference, just return NULL without the print. The caller
> is printing anyways.

yes good catch, we need a v3 with the fixes suggested by Peter in
https://github.com/thesofproject/linux/pull/3171/ applied.