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authorTakashi Iwai <tiwai@suse.de>2013-03-05 15:43:39 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-14 11:32:05 -0700
commit50a885c6f03d574acc5d88728ce5a8f4bb3df9fe (patch)
tree491e5a81c8938b03b166b36566c1853e39eb0680 /sound
parent30061508a22179630a1fedbb435a5cfb6d975aaa (diff)
ALSA: vmaster: Fix slave change notification
commit 2069d483b39a603a5f3428a19d3b4ac89aa97f48 upstream. When a value of a vmaster slave control is changed, the ctl change notification is sometimes ignored. This happens when the master control overrides, e.g. when the corresponding master control is muted. The reason is that slave_put() returns the value of the actual slave put callback, and it doesn't reflect the virtual slave value change. This patch fixes the function just to return 1 whenever a slave value is changed. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/vmaster.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c
index a39d3d8c2f9c..6058a371f0db 100644
--- a/sound/core/vmaster.c
+++ b/sound/core/vmaster.c
@@ -207,7 +207,10 @@ static int slave_put(struct snd_kcontrol *kcontrol,
}
if (!changed)
return 0;
- return slave_put_val(slave, ucontrol);
+ err = slave_put_val(slave, ucontrol);
+ if (err < 0)
+ return err;
+ return 1;
}
static int slave_tlv_cmd(struct snd_kcontrol *kcontrol,