From d4079ac49a08e36d6839a9ceb26aec8c24c9ed82 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 15 Nov 2007 16:14:12 +0100 Subject: [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 Signed-off-by: Jaroslav Kysela --- sound/ppc/tumbler.c | 55 ++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 40 insertions(+), 15 deletions(-) (limited to 'sound/ppc/tumbler.c') diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c index 5821cdd0bec..bacff3d1c18 100644 --- a/sound/ppc/tumbler.c +++ b/sound/ppc/tumbler.c @@ -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; @@ -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 @@ -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; @@ -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; @@ -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; } @@ -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; -- cgit v1.2.3