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ALSA: usb-audio - Fix an unused-variable compile warning

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Used only when CONFIG_SND_DEBUG=y
  sound/usb/mixer.c: In function 'get_min_max':
  sound/usb/mixer.c:762: warning: unused variable 'chip'

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2010-09-16 07:42:34 +02:00
parent 645ef9ef1f
commit 1a4e34e67c
1 changed files with 1 additions and 3 deletions
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4
sound/usb/mixer.c
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@ -759,8 +759,6 @@ static void usb_mixer_elem_free(struct snd_kcontrol *kctl)
*/ */
static int get_min_max(struct usb_mixer_elem_info *cval, int default_min) static int get_min_max(struct usb_mixer_elem_info *cval, int default_min)
{ {
struct snd_usb_audio *chip = cval->mixer->chip;
/* for failsafe */ /* for failsafe */
cval->min = default_min; cval->min = default_min;
cval->max = cval->min + 1; cval->max = cval->min + 1;
@ -783,7 +781,7 @@ static int get_min_max(struct usb_mixer_elem_info *cval, int default_min)
if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 ||
get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) {
snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n", snd_printd(KERN_ERR "%d:%d: cannot get min/max values for control %d (id %d)\n",
cval->id, snd_usb_ctrl_intf(chip), cval->control, cval->id); cval->id, snd_usb_ctrl_intf(cval->mixer->chip), cval->control, cval->id);
return -EINVAL; return -EINVAL;
} }
if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) { if (get_ctl_value(cval, UAC_GET_RES, (cval->control << 8) | minchn, &cval->res) < 0) {