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SubjectRe: [RFC PATCH 12/14] sound: soc: qcom: qusb6: Ensure PCM format is supported by USB audio device
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Hi Sergey,

On 12/24/2022 12:19 AM, Sergey Shtylyov wrote:
> Hello!
>
> On 12/24/22 2:31 AM, Wesley Cheng wrote:
>
>> Check for if the PCM format is supported during the hw_params callback. If
>> the profile is not supported then the userspace ALSA entity will receive an
>> error, and can take further action.
>>
>> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
>> ---
>> sound/soc/qcom/qdsp6/q6usb.c | 9 ++++++++-
>> 1 file changed, 8 insertions(+), 1 deletion(-)
>>
>> diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c
>> index a9da6dec6c6f..128e0974db4e 100644
>> --- a/sound/soc/qcom/qdsp6/q6usb.c
>> +++ b/sound/soc/qcom/qdsp6/q6usb.c
>> @@ -42,7 +42,14 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream,
>> struct snd_pcm_hw_params *params,
>> struct snd_soc_dai *dai)
>> {
>> - return 0;
>> + struct q6usb_port_data *data = dev_get_drvdata(dai->dev);
>> + int direction = substream->stream;
>> + int ret;
>
> You don't seem to need this variable, just use *return*
> snd_soc_usb_find_format(...) >

Thanks for catching this... Will fix it in the next submission I make.
Happy holidays!

Thanks
Wesley Cheng

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