[ALSA] aoa - Check value range in ctl callbacks
Check the value ranges in ctl put callbacks properly in aoa drivers.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/aoa/codecs/snd-aoa-codec-onyx.c b/sound/aoa/codecs/snd-aoa-codec-onyx.c
index 71e3f93..6a3837d 100644
--- a/sound/aoa/codecs/snd-aoa-codec-onyx.c
+++ b/sound/aoa/codecs/snd-aoa-codec-onyx.c
@@ -138,6 +138,13 @@
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
s8 l, r;
+ if (ucontrol->value.integer.value[0] < -128 + VOLUME_RANGE_SHIFT ||
+ ucontrol->value.integer.value[0] > -1 + VOLUME_RANGE_SHIFT)
+ return -EINVAL;
+ if (ucontrol->value.integer.value[1] < -128 + VOLUME_RANGE_SHIFT ||
+ ucontrol->value.integer.value[1] > -1 + VOLUME_RANGE_SHIFT)
+ return -EINVAL;
+
mutex_lock(&onyx->mutex);
onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l);
onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r);
@@ -206,6 +213,9 @@
struct onyx *onyx = snd_kcontrol_chip(kcontrol);
u8 v, n;
+ if (ucontrol->value.integer.value[0] < 3 + INPUTGAIN_RANGE_SHIFT ||
+ ucontrol->value.integer.value[0] > 28 + INPUTGAIN_RANGE_SHIFT)
+ return -EINVAL;
mutex_lock(&onyx->mutex);
onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
n = v;
@@ -272,6 +282,8 @@
static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ if (ucontrol->value.enumerated.item[0] > 1)
+ return -EINVAL;
onyx_set_capture_source(snd_kcontrol_chip(kcontrol),
ucontrol->value.enumerated.item[0]);
return 1;