From 48cc42973509afac24e83d6edc23901d102872d1 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Sun, 12 Apr 2020 10:13:28 +0200
Subject: [PATCH] ALSA: usb-audio: Filter error from connector kctl ops, too
Git-commit: 48cc42973509afac24e83d6edc23901d102872d1
Patch-mainline: v5.7-rc2
References: bsc#1051510

The ignore_ctl_error option should filter the error at kctl accesses,
but there was an overlook: mixer_ctl_connector_get() returns an error
from the request.

This patch covers the forgotten code path and apply filter_error()
properly.  The locking error is still returned since this is a fatal
error that has to be reported even with ignore_ctl_error option.

Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=206873
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200412081331.4742-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/usb/mixer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 721d12130d0c..d27e390dcd32 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1457,7 +1457,7 @@ static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol,
 		usb_audio_err(chip,
 			"cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
 			UAC_GET_CUR, validx, idx, cval->val_type);
-		return ret;
+		return filter_error(cval, ret);
 	}
 
 	ucontrol->value.integer.value[0] = val;
-- 
2.16.4