Fixes gcc '-Wunused-but-set-variable' warning:

sound/usb/mixer.c: In function 'parse_audio_feature_unit': sound/usb/mixer.c:1838:28: warning: variable 'first_ch_bits' set but not used [-Wunused-but-set-variable]

It never used since 2.6

Signed-off-by: YueHaibing yuehaibing@huawei.com --- sound/usb/mixer.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index e7d441d..8ad1a24 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1835,7 +1835,7 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, { int channels, i, j; struct usb_audio_term iterm; - unsigned int master_bits, first_ch_bits; + unsigned int master_bits; int err, csize; struct uac_feature_unit_descriptor *hdr = _ftr; __u8 *bmaControls; @@ -1926,10 +1926,6 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, break;

} - if (channels > 0) - first_ch_bits = snd_usb_combine_bytes(bmaControls + csize, csize); - else - first_ch_bits = 0;

if (state->mixer->protocol == UAC_VERSION_1) { /* check all control types */