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Subject[PATCH 5.10 095/243] ALSA: usb-audio: scarlett2: Fix scarlett2_*_ctl_put() return values
Date
From: Geoffrey D. Bennett <g@b4.vu>

[ 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@b4.vu>
Link: https://lore.kernel.org/r/20210620164645.GA9221@m.b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 f82c2d6b4e6c..1802aee390c7 100644
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -1184,6 +1184,8 @@ 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);
@@ -1244,6 +1246,8 @@ 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);
@@ -1294,6 +1298,8 @@ 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);
@@ -1349,6 +1355,8 @@ 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


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