[PATCH 13/27] ASoC: codecs: mt6359-accdet: Use guard() for mutex locks

[phucduc.bui at gmail.com]

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

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

Signed-off-by: bui duc phuc <phucduc.bui at gmail.com>
---
 sound/soc/codecs/mt6359-accdet.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/mt6359-accdet.c b/sound/soc/codecs/mt6359-accdet.c
index ed34cc15b80e..e1190c644021 100644
--- a/sound/soc/codecs/mt6359-accdet.c
+++ b/sound/soc/codecs/mt6359-accdet.c
@@ -6,6 +6,7 @@
 // Author: Argus Lin <argus.lin at mediatek.com>
 //
 
+#include <linux/cleanup.h>
 #include <linux/of.h>
 #include <linux/input.h>
 #include <linux/kthread.h>
@@ -398,14 +399,13 @@ static void mt6359_accdet_work(struct work_struct *work)
 	struct mt6359_accdet *priv =
 		container_of(work, struct mt6359_accdet, accdet_work);
 
-	mutex_lock(&priv->res_lock);
+	guard(mutex)(&priv->res_lock);
 	priv->pre_accdet_status = priv->accdet_status;
 	check_jack_btn_type(priv);
 
 	if (priv->jack_plugged &&
 	    priv->pre_accdet_status != priv->accdet_status)
 		mt6359_accdet_jack_report(priv);
-	mutex_unlock(&priv->res_lock);
 }
 
 static void mt6359_accdet_jd_work(struct work_struct *work)
@@ -416,7 +416,7 @@ static void mt6359_accdet_jd_work(struct work_struct *work)
 	struct mt6359_accdet *priv =
 		container_of(work, struct mt6359_accdet, jd_work);
 
-	mutex_lock(&priv->res_lock);
+	guard(mutex)(&priv->res_lock);
 	if (priv->jd_sts == M_PLUG_IN) {
 		priv->jack_plugged = true;
 
@@ -450,7 +450,6 @@ static void mt6359_accdet_jd_work(struct work_struct *work)
 
 	if (priv->caps & ACCDET_PMIC_EINT_IRQ)
 		recover_eint_setting(priv);
-	mutex_unlock(&priv->res_lock);
 }
 
 static irqreturn_t mt6359_accdet_irq(int irq, void *data)
@@ -459,7 +458,7 @@ static irqreturn_t mt6359_accdet_irq(int irq, void *data)
 	unsigned int irq_val = 0, val = 0, value = 0;
 	int ret;
 
-	mutex_lock(&priv->res_lock);
+	guard(mutex)(&priv->res_lock);
 	regmap_read(priv->regmap, ACCDET_IRQ_ADDR, &irq_val);
 
 	if (irq_val & ACCDET_IRQ_MASK_SFT) {
@@ -474,7 +473,6 @@ static irqreturn_t mt6359_accdet_irq(int irq, void *data)
 					       1000);
 		if (ret) {
 			dev_err(priv->dev, "%s(), ret %d\n", __func__, ret);
-			mutex_unlock(&priv->res_lock);
 			return IRQ_NONE;
 		}
 		regmap_update_bits(priv->regmap, ACCDET_IRQ_ADDR,
@@ -498,7 +496,6 @@ static irqreturn_t mt6359_accdet_irq(int irq, void *data)
 			if (ret) {
 				dev_err(priv->dev, "%s(), ret %d\n", __func__,
 					ret);
-				mutex_unlock(&priv->res_lock);
 				return IRQ_NONE;
 			}
 			regmap_update_bits(priv->regmap, ACCDET_IRQ_ADDR,
@@ -521,7 +518,6 @@ static irqreturn_t mt6359_accdet_irq(int irq, void *data)
 			if (ret) {
 				dev_err(priv->dev, "%s(), ret %d\n", __func__,
 					ret);
-				mutex_unlock(&priv->res_lock);
 				return IRQ_NONE;
 			}
 			regmap_update_bits(priv->regmap, ACCDET_IRQ_ADDR,
@@ -540,7 +536,6 @@ static irqreturn_t mt6359_accdet_irq(int irq, void *data)
 
 		queue_work(priv->jd_workqueue, &priv->jd_work);
 	}
-	mutex_unlock(&priv->res_lock);
 
 	return IRQ_HANDLED;
 }
-- 
2.43.0