[alsa-devel] [PATCH] ASoC: dapm: update function comments

[Tzung-Bi Shih]

snd_soc_dapm_put_volsw() and snd_soc_dapm_put_enum_double() returns
0 if the value is unchanged and 1 if changed. Both 0 and 1 indicate
a success.

Signed-off-by: Tzung-Bi Shih <tzungbi at google.com>
---
 sound/soc/soc-dapm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 2d9709104ec5..9843086dc1ed 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3178,7 +3178,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw);
  *
  * Callback to set the value of a dapm mixer control.
  *
- * Returns 0 for success.
+ * Returns either 0 or 1 for success: 1 if changed, 0 if unchanged.
  */
 int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
@@ -3311,7 +3311,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double);
  *
  * Callback to set the value of a dapm enumerated double mixer control.
  *
- * Returns 0 for success.
+ * Returns either 0 or 1 for success: 1 if changed, 0 if unchanged.
  */
 int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
-- 
2.18.0.rc1.242.g61856ae69a-goog