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| author | Takashi Iwai <tiwai@suse.de> | 2021-11-05 10:09:25 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-11-05 12:58:12 +0000 |
| commit | 827b0913a9d9d07a0c3e559dbb20ca4d6d285a54 (patch) | |
| tree | 18373814cfba53d453feb5ea26c46959665464ef /sound | |
| parent | fd572393baf0350835e8d822db588f679dc7bcb8 (diff) | |
| download | linux-stable-827b0913a9d9d07a0c3e559dbb20ca4d6d285a54.tar.gz linux-stable-827b0913a9d9d07a0c3e559dbb20ca4d6d285a54.tar.bz2 linux-stable-827b0913a9d9d07a0c3e559dbb20ca4d6d285a54.zip | |
ASoC: DAPM: Cover regression by kctl change notification fix
The recent fix for DAPM to correct the kctl change notification by the
commit 5af82c81b2c4 ("ASoC: DAPM: Fix missing kctl change
notifications") caused other regressions since it changed the behavior
of snd_soc_dapm_set_pin() that is called from several API functions.
Formerly it returned always 0 for success, but now it returns 0 or 1.
This patch addresses it, restoring the old behavior of
snd_soc_dapm_set_pin() while keeping the fix in
snd_soc_dapm_put_pin_switch().
Fixes: 5af82c81b2c4 ("ASoC: DAPM: Fix missing kctl change notifications")
Reported-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20211105090925.20575-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-dapm.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 2892b0aba151..b06c5682445c 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2559,8 +2559,13 @@ static struct snd_soc_dapm_widget *dapm_find_widget( return NULL; } -static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, - const char *pin, int status) +/* + * set the DAPM pin status: + * returns 1 when the value has been updated, 0 when unchanged, or a negative + * error code; called from kcontrol put callback + */ +static int __snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, + const char *pin, int status) { struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); int ret = 0; @@ -2586,6 +2591,18 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, return ret; } +/* + * similar as __snd_soc_dapm_set_pin(), but returns 0 when successful; + * called from several API functions below + */ +static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, + const char *pin, int status) +{ + int ret = __snd_soc_dapm_set_pin(dapm, pin, status); + + return ret < 0 ? ret : 0; +} + /** * snd_soc_dapm_sync_unlocked - scan and power dapm paths * @dapm: DAPM context @@ -3589,10 +3606,10 @@ int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, const char *pin = (const char *)kcontrol->private_value; int ret; - if (ucontrol->value.integer.value[0]) - ret = snd_soc_dapm_enable_pin(&card->dapm, pin); - else - ret = snd_soc_dapm_disable_pin(&card->dapm, pin); + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + ret = __snd_soc_dapm_set_pin(&card->dapm, pin, + !!ucontrol->value.integer.value[0]); + mutex_unlock(&card->dapm_mutex); snd_soc_dapm_sync(&card->dapm); return ret; |