ALSA: snd-usb: fix clock source validity index
authorDaniel Mack <zonque@gmail.com>
Wed, 1 Aug 2012 08:16:53 +0000 (10:16 +0200)
committerTakashi Iwai <tiwai@suse.de>
Wed, 1 Aug 2012 08:24:16 +0000 (10:24 +0200)
commitaff252a848ce21b431ba822de3dab9c4c94571cb
tree3780933dfad8b9b880baa5fe67a155008cf7295c
parent1f43f6c1bc8d740e75b4177eb29110858bb5fea2
ALSA: snd-usb: fix clock source validity index

uac_clock_source_is_valid() uses the control selector value to access
the bmControls bitmap of the clock source unit. This is wrong, as
control selector values start from 1, while the bitmap uses all
available bits.

In other words, "Clock Validity Control" is stored in D3..2, not D5..4
of the clock selector unit's bmControls.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Andreas Koch <andreas@akdesigninc.com>
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/clock.c