diff options
| author | Takashi Iwai <tiwai@suse.de> | 2007-11-15 16:14:12 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:29:25 +0100 |
| commit | d4079ac49a08e36d6839a9ceb26aec8c24c9ed82 (patch) | |
| tree | 91ebc493375fd4e7fa84c3a6ab67a885121b1c81 /sound/ppc/daca.c | |
| parent | d05ab185b770de96399766be6bcb5769ab99bc09 (diff) | |
[ALSA] powermac - Check value range in ctl callbacks
Check the value ranges in ctl put callbacks properly in snd-powermac
driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/ppc/daca.c')
| -rw-r--r-- | sound/ppc/daca.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sound/ppc/daca.c b/sound/ppc/daca.c index c5a1f0be6a4d..0c8145792d54 100644 --- a/sound/ppc/daca.c +++ b/sound/ppc/daca.c @@ -115,7 +115,7 @@ static int daca_put_deemphasis(struct snd_kcontrol *kcontrol, return -ENODEV; change = mix->deemphasis != ucontrol->value.integer.value[0]; if (change) { - mix->deemphasis = ucontrol->value.integer.value[0]; + mix->deemphasis = !!ucontrol->value.integer.value[0]; daca_set_volume(mix); } return change; @@ -149,15 +149,20 @@ static int daca_put_volume(struct snd_kcontrol *kcontrol, { struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); struct pmac_daca *mix; + unsigned int vol[2]; int change; if (! (mix = chip->mixer_data)) return -ENODEV; - change = mix->left_vol != ucontrol->value.integer.value[0] || - mix->right_vol != ucontrol->value.integer.value[1]; + vol[0] = ucontrol->value.integer.value[0]; + vol[1] = ucontrol->value.integer.value[1]; + if (vol[0] > DACA_VOL_MAX || vol[1] > DACA_VOL_MAX) + return -EINVAL; + change = mix->left_vol != vol[0] || + mix->right_vol != vol[1]; if (change) { - mix->left_vol = ucontrol->value.integer.value[0]; - mix->right_vol = ucontrol->value.integer.value[1]; + mix->left_vol = vol[0]; + mix->right_vol = vol[1]; daca_set_volume(mix); } return change; @@ -188,7 +193,7 @@ static int daca_put_amp(struct snd_kcontrol *kcontrol, return -ENODEV; change = mix->amp_on != ucontrol->value.integer.value[0]; if (change) { - mix->amp_on = ucontrol->value.integer.value[0]; + mix->amp_on = !!ucontrol->value.integer.value[0]; i2c_smbus_write_byte_data(mix->i2c.client, DACA_REG_GCFG, mix->amp_on ? 0x05 : 0x04); } |