[PATCH AUTOSEL 5.4 51/63] ALSA: usb-audio: scarlett2: Fix scarlett2_*_ctl_put() return values
From: Sasha Levin
Date: Fri Jul 09 2021 - 22:34:49 EST
From: "Geoffrey D. Bennett" <g@xxxxx>
[ Upstream commit c5d8e008032f3cd5f266d552732973a960b0bd4b ]
Mixer control put callbacks should return 1 if the value is changed.
Fix the sw_hw, level, pad, and button controls accordingly.
Signed-off-by: Geoffrey D. Bennett <g@xxxxx>
Link: https://lore.kernel.org/r/20210620164645.GA9221@xxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/usb/mixer_scarlett_gen2.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index 60545eeef28f..8fd1f948a892 100644
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -1179,6 +1179,8 @@ static int scarlett2_sw_hw_enum_ctl_put(struct snd_kcontrol *kctl,
/* Send SW/HW switch change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_SW_HW_SWITCH,
index, val);
+ if (err == 0)
+ err = 1;
unlock:
mutex_unlock(&private->data_mutex);
@@ -1239,6 +1241,8 @@ static int scarlett2_level_enum_ctl_put(struct snd_kcontrol *kctl,
/* Send switch change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_LEVEL_SWITCH,
index, val);
+ if (err == 0)
+ err = 1;
unlock:
mutex_unlock(&private->data_mutex);
@@ -1289,6 +1293,8 @@ static int scarlett2_pad_ctl_put(struct snd_kcontrol *kctl,
/* Send switch change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PAD_SWITCH,
index, val);
+ if (err == 0)
+ err = 1;
unlock:
mutex_unlock(&private->data_mutex);
@@ -1344,6 +1350,8 @@ static int scarlett2_button_ctl_put(struct snd_kcontrol *kctl,
/* Send switch change to the device */
err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_BUTTONS,
index, val);
+ if (err == 0)
+ err = 1;
unlock:
mutex_unlock(&private->data_mutex);
--
2.30.2