From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 2 May 2005 06:52:32 +0000 (+0200)
Subject: [ALSA] usb-audio - allow type 0 extension units
X-Git-Tag: v2.6.13-rc1~68^2~660
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4dc40a3cc4778ebcb6212bdb71b48690a153be07;p=karo-tx-linux.git

[ALSA] usb-audio - allow type 0 extension units

USB generic driver
Extension units can have type 0, so do not ignore them when constructing
mixer controls.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---

diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index bfaec4fc1851..5683ae0b5ba1 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -1232,9 +1232,6 @@ static int build_audio_procunit(mixer_build_t *state, int unitid, unsigned char
 	}
 
 	type = combine_word(&dsc[4]);
-	if (! type)
-		return 0; /* undefined? */
-
 	for (info = list; info && info->type; info++)
 		if (info->type == type)
 			break;