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| author | Jonas Holmberg <jonashg@axis.com> | 2021-04-07 09:54:28 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-04-07 10:21:25 +0200 |
| commit | 168632a495f49f33a18c2d502fc249d7610375e9 (patch) | |
| tree | d3fd4a9bb933edce047e9652ff8f30ae713174d6 /sound/drivers | |
| parent | c6423ed2da6214a68527446b5f8e09cf7162b2ce (diff) | |
| download | linux-168632a495f49f33a18c2d502fc249d7610375e9.tar.bz2 | |
ALSA: aloop: Fix initialization of controls
Add a control to the card before copying the id so that the numid field
is initialized in the copy. Otherwise the numid field of active_id,
format_id, rate_id and channels_id will be the same (0) and
snd_ctl_notify() will not queue the events properly.
Signed-off-by: Jonas Holmberg <jonashg@axis.com>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210407075428.2666787-1-jonashg@axis.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/drivers')
| -rw-r--r-- | sound/drivers/aloop.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c index 8a24e5ae7cef..ef0cdfddfd3f 100644 --- a/sound/drivers/aloop.c +++ b/sound/drivers/aloop.c @@ -1572,6 +1572,14 @@ static int loopback_mixer_new(struct loopback *loopback, int notify) return -ENOMEM; kctl->id.device = dev; kctl->id.subdevice = substr; + + /* Add the control before copying the id so that + * the numid field of the id is set in the copy. + */ + err = snd_ctl_add(card, kctl); + if (err < 0) + return err; + switch (idx) { case ACTIVE_IDX: setup->active_id = kctl->id; @@ -1588,9 +1596,6 @@ static int loopback_mixer_new(struct loopback *loopback, int notify) default: break; } - err = snd_ctl_add(card, kctl); - if (err < 0) - return err; } } } |