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ALSA: usb-audio: Always create the interrupt pipe for the mixer 

An UAC3 BADD device may also include an interrupt status pipe
to report changes on the HEADSET ADAPTER terminals. The creation
of the status pipe is dependent on the device reporting that it
has it.

Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
hifive-unleashed-5.1
Jorge Sanjuan 2018-06-14 15:05:58 +01:00 committed by Takashi Iwai
parent 3528cd8f6a
commit ad6baae623
1 changed files with 5 additions and 3 deletions
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8
sound/usb/mixer.c
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@ -3338,10 +3338,12 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
err = snd_usb_mixer_controls(mixer);
if (err < 0)
goto _error;
err = snd_usb_mixer_status_create(mixer);
if (err < 0)
goto _error;
}
err = snd_usb_mixer_status_create(mixer);
if (err < 0)
goto _error;
err = create_keep_iface_ctl(mixer);
if (err < 0)
goto _error;