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ALSA: snd-usb: drop unused varible assigments

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Don't assign 'len' in cases where we don't make use of the returned value.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Daniel Mack 2014-10-19 09:11:25 +02:00 committed by Takashi Iwai
parent 70c84418bf
commit 49fd46d2ff
1 changed files with 4 additions and 5 deletions
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9
sound/usb/mixer.c
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@ -1290,9 +1290,8 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
kctl->id.name,
sizeof(kctl->id.name), 1);
if (!len)
len = snprintf(kctl->id.name,
sizeof(kctl->id.name),
"Feature %d", unitid);
snprintf(kctl->id.name, sizeof(kctl->id.name),
"Feature %d", unitid);
}
if (!mapped_name)
@ -1305,9 +1304,9 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
*/
if (!mapped_name && !(state->oterm.type >> 16)) {
if ((state->oterm.type & 0xff00) == 0x0100)
len = append_ctl_name(kctl, " Capture");
append_ctl_name(kctl, " Capture");
else
len = append_ctl_name(kctl, " Playback");
append_ctl_name(kctl, " Playback");
}
append_ctl_name(kctl, control == UAC_FU_MUTE ?
" Switch" : " Volume");