ALSA: usb-audio: harmless underflow in snd_audigy2nx_led_put()

We want to verify that "value" is either zero or one, so we test if it
is greater than one.  Unfortunately, this is a signed int so it could
also be negative.  I think this is harmless but it introduces a static
checker warning.  Let's make "value" unsigned.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index d3608c0a29f343f32179b33b74f537172484fb4b..fe91184ce83247d8b0360bab09e94c8f7cb720d8 100644 (file)
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -338,7 +338,7 @@ static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol,
        struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
        struct usb_mixer_interface *mixer = list->mixer;
        int index = kcontrol->private_value & 0xff;
-       int value = ucontrol->value.integer.value[0];
+       unsigned int value = ucontrol->value.integer.value[0];
        int old_value = kcontrol->private_value >> 8;
        int err;