The driver worked around an error in the MAYA44 USB(+)'s mixer unit descriptor by aborting before parsing the missing field. However, aborting parsing too early prevented parsing of the other units connected to this unit, so the capture mixer controls would be missing.
Fix this by moving the check for this descriptor error after the parsing of the unit's input pins.
Reported-by: nightmixes nightmixes@gmail.com Tested-by: nightmixes nightmixes@gmail.com Signed-off-by: Clemens Ladisch clemens@ladisch.de
--- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1583,18 +1583,15 @@ static int parse_audio_mixer_unit(struct unitid); return -EINVAL; } - /* no bmControls field (e.g. Maya44) -> ignore */ - if (desc->bLength <= 10 + input_pins) { - usb_audio_dbg(state->chip, "MU %d has no bmControls field\n", - unitid); - return 0; - }
num_ins = 0; ich = 0; for (pin = 0; pin < input_pins; pin++) { err = parse_audio_unit(state, desc->baSourceID[pin]); if (err < 0) + continue; + /* no bmControls field (e.g. Maya44) -> ignore */ + if (desc->bLength <= 10 + input_pins) continue; err = check_input_term(state, desc->baSourceID[pin], &iterm); if (err < 0)