diff options
| author | Jaroslav Kysela <perex@perex.cz> | 2021-08-11 18:14:41 +0200 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2021-08-26 08:37:54 -0400 |
| commit | 591bf123ce10cd9c5b9b3f273c44fdc654966796 (patch) | |
| tree | 9e9a7cc33ab606cb6f3a7f1f61ac28a232677847 /sound | |
| parent | 61eb2ee2c46b8e128489443fa3fd6d18669e0e1e (diff) | |
| download | linux-stable-591bf123ce10cd9c5b9b3f273c44fdc654966796.tar.gz linux-stable-591bf123ce10cd9c5b9b3f273c44fdc654966796.tar.bz2 linux-stable-591bf123ce10cd9c5b9b3f273c44fdc654966796.zip | |
ALSA: hda - fix the 'Capture Switch' value change notifications
[ Upstream commit a2befe9380dd04ee76c871568deca00eedf89134 ]
The original code in the cap_put_caller() function does not
handle correctly the positive values returned from the passed
function for multiple iterations. It means that the change
notifications may be lost.
Fixes: 352f7f914ebb ("ALSA: hda - Merge Realtek parser code to generic parser")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213851
Cc: <stable@kernel.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20210811161441.1325250-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/hda_generic.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index 7fed8d1bb79c..5c708d9851b8 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -3442,7 +3442,7 @@ static int cap_put_caller(struct snd_kcontrol *kcontrol, struct hda_gen_spec *spec = codec->spec; const struct hda_input_mux *imux; struct nid_path *path; - int i, adc_idx, err = 0; + int i, adc_idx, ret, err = 0; imux = &spec->input_mux; adc_idx = kcontrol->id.index; @@ -3452,9 +3452,13 @@ static int cap_put_caller(struct snd_kcontrol *kcontrol, if (!path || !path->ctls[type]) continue; kcontrol->private_value = path->ctls[type]; - err = func(kcontrol, ucontrol); - if (err < 0) + ret = func(kcontrol, ucontrol); + if (ret < 0) { + err = ret; break; + } + if (ret > 0) + err = 1; } mutex_unlock(&codec->control_mutex); if (err >= 0 && spec->cap_sync_hook) |