diff --git a/[refs] b/[refs]
index a31361463956..765b7c6b47b9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3ee317fe9cf08d81501b142bf0054c25e3ed5e7d
+refs/heads/master: e8d0fee70b66694959eab10c41788b9279d73629
diff --git a/trunk/sound/usb/mixer.c b/trunk/sound/usb/mixer.c
index 97dd17655104..03ce971e0027 100644
--- a/trunk/sound/usb/mixer.c
+++ b/trunk/sound/usb/mixer.c
@@ -1126,7 +1126,7 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void
 	} else {
 		struct uac2_feature_unit_descriptor *ftr = _ftr;
 		csize = 4;
-		channels = (hdr->bLength - 6) / 4;
+		channels = (hdr->bLength - 6) / 4 - 1;
 		bmaControls = ftr->bmaControls;
 	}