ALSA: snd-usb-audio: Skip un-parseable mixer units instead of erroring
Some interfaces reference endpoints which do not exists. To
accomodate these, do not fail completely, but skip over them.
This allows the Electrix Ebox-44 with earlier firmware to be
detected and used for audio.
Signed-off-by: Mark Hills <mark@pogo.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index ab23869..c374c72 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1388,7 +1388,7 @@
for (pin = 0; pin < input_pins; pin++) {
err = parse_audio_unit(state, desc->baSourceID[pin]);
if (err < 0)
- return err;
+ continue;
err = check_input_term(state, desc->baSourceID[pin], &iterm);
if (err < 0)
return err;