Don't create vmaster controls if no slaves are found in the given list.
This prevents the error due to an empty vmaster control.
Signed-off-by: Takashi Iwai <[EMAIL PROTECTED]>
---
sound/pci/hda/hda_codec.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 5c6419e..37c4139 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1055,6 +1055,12 @@ int snd_hda_add_vmaster(struct hda_codec *codec, char
*name,
const char **s;
int err;
+ for (s = slaves; *s && !snd_hda_find_mixer_ctl(codec, *s); s++)
+ ;
+ if (!*s) {
+ snd_printdd("No slave found for %s\n", name);
+ return 0;
+ }
kctl = snd_ctl_make_virtual_master(name, tlv);
if (!kctl)
return -ENOMEM;
--
1.5.3.8
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