[PATCH v3 18/26] ASoC: codecs: wm5102: Use guard() for mutex locks

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

Clean up the code using guard() for mutex locks.
Merely code refactoring, and no behavior change.

Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/codecs/wm5102.c | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c
index b4d4137c05b4..74b775b95bfd 100644
--- a/sound/soc/codecs/wm5102.c
+++ b/sound/soc/codecs/wm5102.c
@@ -7,6 +7,7 @@
  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
  */
 
+#include <linux/cleanup.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
@@ -667,10 +668,9 @@ static int wm5102_out_comp_coeff_get(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	struct arizona *arizona = dev_get_drvdata(component->dev->parent);
 
-	mutex_lock(&arizona->dac_comp_lock);
+	guard(mutex)(&arizona->dac_comp_lock);
 	put_unaligned_be16(arizona->dac_comp_coeff,
 			   ucontrol->value.bytes.data);
-	mutex_unlock(&arizona->dac_comp_lock);
 
 	return 0;
 }
@@ -681,16 +681,14 @@ static int wm5102_out_comp_coeff_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	struct arizona *arizona = dev_get_drvdata(component->dev->parent);
 	uint16_t dac_comp_coeff = get_unaligned_be16(ucontrol->value.bytes.data);
-	int ret = 0;
 
-	mutex_lock(&arizona->dac_comp_lock);
+	guard(mutex)(&arizona->dac_comp_lock);
 	if (arizona->dac_comp_coeff != dac_comp_coeff) {
 		arizona->dac_comp_coeff = dac_comp_coeff;
-		ret = 1;
+		return 1;
 	}
-	mutex_unlock(&arizona->dac_comp_lock);
 
-	return ret;
+	return 0;
 }
 
 static int wm5102_out_comp_switch_get(struct snd_kcontrol *kcontrol,
@@ -699,9 +697,8 @@ static int wm5102_out_comp_switch_get(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	struct arizona *arizona = dev_get_drvdata(component->dev->parent);
 
-	mutex_lock(&arizona->dac_comp_lock);
+	guard(mutex)(&arizona->dac_comp_lock);
 	ucontrol->value.integer.value[0] = arizona->dac_comp_enabled;
-	mutex_unlock(&arizona->dac_comp_lock);
 
 	return 0;
 }
@@ -712,19 +709,17 @@ static int wm5102_out_comp_switch_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	struct arizona *arizona = dev_get_drvdata(component->dev->parent);
 	struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value;
-	int ret = 0;
 
 	if (ucontrol->value.integer.value[0] > mc->max)
 		return -EINVAL;
 
-	mutex_lock(&arizona->dac_comp_lock);
+	guard(mutex)(&arizona->dac_comp_lock);
 	if (arizona->dac_comp_enabled != ucontrol->value.integer.value[0]) {
 		arizona->dac_comp_enabled = ucontrol->value.integer.value[0];
-		ret = 1;
+		return 1;
 	}
-	mutex_unlock(&arizona->dac_comp_lock);
 
-	return ret;
+	return 0;
 }
 
 static const char * const wm5102_osr_text[] = {
-- 
2.43.0