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[ALSA] powermac - Check value range in ctl callbacks
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Check the value ranges in ctl put callbacks properly in snd-powermac
driver.

Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Jaroslav Kysela <[email protected]>
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@tiwai @perexg
tiwai authored and perexg committed Jan 31, 2008
1 parent d05ab18 commit d4079ac
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Showing 6 changed files with 79 additions and 33 deletions.
20 changes: 15 additions & 5 deletions sound/ppc/awacs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -175,10 +175,12 @@ static int snd_pmac_awacs_put_volume(struct snd_kcontrol *kcontrol,
int inverted = (kcontrol->private_value >> 16) & 1;
int val, oldval;
unsigned long flags;
int vol[2];
unsigned int vol[2];

vol[0] = ucontrol->value.integer.value[0];
vol[1] = ucontrol->value.integer.value[1];
if (vol[0] > 0x0f || vol[1] > 0x0f)
return -EINVAL;
if (inverted) {
vol[0] = 0x0f - vol[0];
vol[1] = 0x0f - vol[1];
Expand Down Expand Up @@ -421,10 +423,14 @@ static int snd_pmac_awacs_put_tone_amp(struct snd_kcontrol *kcontrol,
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
int index = kcontrol->private_value;
struct awacs_amp *amp = chip->mixer_data;
unsigned int val;
snd_assert(amp, return -EINVAL);
snd_assert(index >= 0 && index <= 1, return -EINVAL);
if (ucontrol->value.integer.value[0] != amp->amp_tone[index]) {
amp->amp_tone[index] = ucontrol->value.integer.value[0];
val = ucontrol->value.integer.value[0];
if (val > 14)
return -EINVAL;
if (val != amp->amp_tone[index]) {
amp->amp_tone[index] = val;
awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]);
return 1;
}
Expand Down Expand Up @@ -456,9 +462,13 @@ static int snd_pmac_awacs_put_master_amp(struct snd_kcontrol *kcontrol,
{
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
struct awacs_amp *amp = chip->mixer_data;
unsigned int val;
snd_assert(amp, return -EINVAL);
if (ucontrol->value.integer.value[0] != amp->amp_master) {
amp->amp_master = ucontrol->value.integer.value[0];
val = ucontrol->value.integer.value[0];
if (val > 99)
return -EINVAL;
if (val != amp->amp_master) {
amp->amp_master = val;
awacs_amp_set_master(amp, amp->amp_master);
return 1;
}
Expand Down
7 changes: 5 additions & 2 deletions sound/ppc/beep.c
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Original file line number Diff line number Diff line change
Expand Up @@ -195,10 +195,13 @@ static int snd_pmac_put_beep(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
int oval;
unsigned int oval, nval;
snd_assert(chip->beep, return -ENXIO);
oval = chip->beep->volume;
chip->beep->volume = ucontrol->value.integer.value[0];
nval = ucontrol->value.integer.value[0];
if (nval > 100)
return -EINVAL;
chip->beep->volume = nval;
return oval != chip->beep->volume;
}

Expand Down
11 changes: 7 additions & 4 deletions sound/ppc/burgundy.c
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Original file line number Diff line number Diff line change
Expand Up @@ -136,6 +136,9 @@ snd_pmac_burgundy_write_volume(struct snd_pmac *chip, unsigned int address,
{
int hardvolume, lvolume, rvolume;

if (volume[0] < 0 || volume[0] > 100 ||
volume[1] < 0 || volume[1] > 100)
return; /* -EINVAL */
lvolume = volume[0] ? volume[0] + BURGUNDY_VOLUME_OFFSET : 0;
rvolume = volume[1] ? volume[1] + BURGUNDY_VOLUME_OFFSET : 0;

Expand Down Expand Up @@ -301,14 +304,14 @@ static int snd_pmac_burgundy_put_volume_out(struct snd_kcontrol *kcontrol,
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
unsigned int addr = BASE2ADDR(kcontrol->private_value & 0xff);
int stereo = (kcontrol->private_value >> 24) & 1;
int oval, val;
unsigned int oval, val;

oval = ~snd_pmac_burgundy_rcb(chip, addr) & 0xff;
val = ucontrol->value.integer.value[0];
val = ucontrol->value.integer.value[0] & 15;
if (stereo)
val |= ucontrol->value.integer.value[1] << 4;
val |= (ucontrol->value.integer.value[1] & 15) << 4;
else
val |= ucontrol->value.integer.value[0] << 4;
val |= val << 4;
val = ~val & 0xff;
snd_pmac_burgundy_wcb(chip, addr, val);
return val != oval;
Expand Down
17 changes: 11 additions & 6 deletions sound/ppc/daca.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -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);
}
Expand Down
2 changes: 1 addition & 1 deletion sound/ppc/pmac.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1028,7 +1028,7 @@ static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
{
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
if (ucontrol->value.integer.value[0] != chip->auto_mute) {
chip->auto_mute = ucontrol->value.integer.value[0];
chip->auto_mute = !!ucontrol->value.integer.value[0];
if (chip->update_automute)
chip->update_automute(chip, 1);
return 1;
Expand Down
55 changes: 40 additions & 15 deletions sound/ppc/tumbler.c
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Original file line number Diff line number Diff line change
Expand Up @@ -275,14 +275,20 @@ static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
{
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
struct pmac_tumbler *mix = chip->mixer_data;
unsigned int vol[2];
int change;

snd_assert(mix, return -ENODEV);
change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
mix->master_vol[1] != ucontrol->value.integer.value[1];
vol[0] = ucontrol->value.integer.value[0];
vol[1] = ucontrol->value.integer.value[1];
if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
vol[1] >= ARRAY_SIZE(master_volume_table))
return -EINVAL;
change = mix->master_vol[0] != vol[0] ||
mix->master_vol[1] != vol[1];
if (change) {
mix->master_vol[0] = ucontrol->value.integer.value[0];
mix->master_vol[1] = ucontrol->value.integer.value[1];
mix->master_vol[0] = vol[0];
mix->master_vol[1] = vol[1];
tumbler_set_master_volume(mix);
}
return change;
Expand Down Expand Up @@ -417,13 +423,22 @@ static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
{
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
struct pmac_tumbler *mix;
unsigned int val;
int change;

if (! (mix = chip->mixer_data))
return -ENODEV;
change = mix->drc_range != ucontrol->value.integer.value[0];
val = ucontrol->value.integer.value[0];
if (chip->model == PMAC_TUMBLER) {
if (val > TAS3001_DRC_MAX)
return -EINVAL;
} else {
if (val > TAS3004_DRC_MAX)
return -EINVAL;
}
change = mix->drc_range != val;
if (change) {
mix->drc_range = ucontrol->value.integer.value[0];
mix->drc_range = val;
if (chip->model == PMAC_TUMBLER)
tumbler_set_drc(mix);
else
Expand Down Expand Up @@ -530,13 +545,17 @@ static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
struct pmac_tumbler *mix;
unsigned int vol;
int change;

if (! (mix = chip->mixer_data))
return -ENODEV;
change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
vol = ucontrol->value.integer.value[0];
if (vol >= info->max)
return -EINVAL;
change = mix->mono_vol[info->index] != vol;
if (change) {
mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
mix->mono_vol[info->index] = vol;
tumbler_set_mono_volume(mix, info);
}
return change;
Expand Down Expand Up @@ -672,15 +691,21 @@ static int snapper_put_mix(struct snd_kcontrol *kcontrol,
int idx = (int)kcontrol->private_value;
struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
struct pmac_tumbler *mix;
unsigned int vol[2];
int change;

if (! (mix = chip->mixer_data))
return -ENODEV;
change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
vol[0] = ucontrol->value.integer.value[0];
vol[1] = ucontrol->value.integer.value[1];
if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
vol[1] >= ARRAY_SIZE(mixer_volume_table))
return -EINVAL;
change = mix->mix_vol[idx][0] != vol[0] ||
mix->mix_vol[idx][1] != vol[1];
if (change) {
mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
mix->mix_vol[idx][0] = vol[0];
mix->mix_vol[idx][1] = vol[1];
snapper_set_mix_vol(mix, idx);
}
return change;
Expand Down Expand Up @@ -784,7 +809,7 @@ static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
struct pmac_tumbler *mix = chip->mixer_data;

snd_assert(mix, return -ENODEV);
ucontrol->value.integer.value[0] = mix->capture_source;
ucontrol->value.enumerated.value[0] = mix->capture_source;
return 0;
}

Expand All @@ -796,9 +821,9 @@ static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
int change;

snd_assert(mix, return -ENODEV);
change = ucontrol->value.integer.value[0] != mix->capture_source;
change = ucontrol->value.enuemerated.item[0] != mix->capture_source;
if (change) {
mix->capture_source = !!ucontrol->value.integer.value[0];
mix->capture_source = !!ucontrol->value.enumerated.item[0];
snapper_set_capture_source(mix);
}
return change;
Expand Down

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