From ad6baae6238136d9380ba95aa1646ab8b2fa52f5 Mon Sep 17 00:00:00 2001
From: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Date: Thu, 14 Jun 2018 15:05:58 +0100
Subject: [PATCH] ALSA: usb-audio: Always create the interrupt pipe for the mixer
Git-commit: ad6baae6238136d9380ba95aa1646ab8b2fa52f5
Patch-mainline: v4.18-rc1
References: bsc#1121278
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>
---
sound/usb/mixer.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 03b8a2ac93c8..b1dcf6dfc27e 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -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;
--
2.20.1