aboutsummaryrefslogtreecommitdiff
path: root/sound
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2008-02-22 18:43:50 +0100
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-22 14:20:09 -0800
commit2f0855497738a56825ee6445574835b4fc1d77d5 (patch)
tree0c745f07383f08e3e4d03eb3dc1c59a3aa6d99bf /sound
parent14c65f98bfea9324cf334793305dd262d0095850 (diff)
downloadlinux-2.6.34-ux500-2f0855497738a56825ee6445574835b4fc1d77d5.tar.gz
[ALSA] hda-codec - Don't create vmaster if no slaves found
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 <tiwai@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_codec.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 5c6419ead01..37c413923db 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;