diff options
Diffstat (limited to 'sound/core/control.c')
| -rw-r--r-- | sound/core/control.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index fb0c60044f7b..1dd2337e2930 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -1480,12 +1480,16 @@ static int snd_ctl_elem_user_get(struct snd_kcontrol *kcontrol, static int snd_ctl_elem_user_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - int change; + int err, change; struct user_element *ue = kcontrol->private_data; unsigned int size = ue->elem_data_size; char *dst = ue->elem_data + snd_ctl_get_ioff(kcontrol, &ucontrol->id) * size; + err = sanity_check_input_values(ue->card, ucontrol, &ue->info, false); + if (err < 0) + return err; + change = memcmp(&ucontrol->value, dst, size) != 0; if (change) memcpy(dst, &ucontrol->value, size); |