[PATCH 1/4] ALSA: usb-audio: Filter error from connector kctl ops, too

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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@xxxxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
 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




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