Re: [PATCH v2] ALSA: usb-audio: disable 96khz support for HUAWEI USB-C HEADSET

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On Tue, Nov 10, 2020 at 04:42:54PM +0800, Macpaul Lin wrote:
> The HUAWEI USB-C headset (VID:0x12d1, PID:0x3a07) reported it supports
> 96khz. However there will be some random issue under 96khz.
> Not sure if there is any alternate setting could be applied.
> Hence 48khz is suggested to be applied at this moment.
> 
> Signed-off-by: Macpaul Lin <macpaul.lin@xxxxxxxxxxxx>
> Signed-off-by: Eddie Hung <eddie.hung@xxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> ---
> Changes for v2:
>   - Fix build error.
>   - Add Cc: stable@xxxxxxxxxxxxxxx
> 
>  sound/usb/format.c |    6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/sound/usb/format.c b/sound/usb/format.c
> index 1b28d01..7a4837b 100644
> --- a/sound/usb/format.c
> +++ b/sound/usb/format.c
> @@ -202,6 +202,7 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof
>  		fp->rate_min = fp->rate_max = 0;
>  		for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) {
>  			unsigned int rate = combine_triple(&fmt[idx]);
> +			struct usb_device *udev = chip->dev;
>  			if (!rate)
>  				continue;
>  			/* C-Media CM6501 mislabels its 96 kHz altsetting */

Did you run this patch through checkpatch.pl?




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