Hi!
From: Takashi Iwai tiwai@suse.de
[ Upstream commit 10457f5042b4890a667e2f15a2e783490dda44d2 ]
So far the vmaster code has been tolerant about the input values and accepts any values by correcting internally. But now our own selftest starts complaining about this behavior, so let's be picky and change the behavior to return -EINVAL for invalid input values instead.
Does it fix a bug serious enough for -stable?
Best regards, Pavel
+++ b/sound/core/vmaster.c @@ -204,6 +204,12 @@ static int follower_put(struct snd_kcontrol *kcontrol, err = follower_init(follower); if (err < 0) return err;
- for (ch = 0; ch < follower->info.count; ch++) {
if (ucontrol->value.integer.value[ch] < follower->info.min_val ||ucontrol->value.integer.value[ch] > follower->info.max_val)return -EINVAL;- }
- for (ch = 0; ch < follower->info.count; ch++) { if (follower->vals[ch] != ucontrol->value.integer.value[ch]) { changed = 1;
@@ -344,6 +350,8 @@ static int master_put(struct snd_kcontrol *kcontrol, new_val = ucontrol->value.integer.value[0]; if (new_val == old_val) return 0;
- if (new_val < master->info.min_val || new_val > master->info.max_val)
return -EINVAL;err = sync_followers(master, old_val, new_val); if (err < 0)