[PATCH v4 07/24] ASoC: codecs: aw88166: 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: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/codecs/aw88166.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/sound/soc/codecs/aw88166.c b/sound/soc/codecs/aw88166.c
index 3f15f4ac51f7..b72f87f677dd 100644
--- a/sound/soc/codecs/aw88166.c
+++ b/sound/soc/codecs/aw88166.c
@@ -7,6 +7,7 @@
 // Author: Weidong Wang <wangweidong.a@awinic.com>
 //
 
+#include <linux/cleanup.h>
 #include <linux/crc32.h>
 #include <linux/firmware.h>
 #include <linux/gpio/consumer.h>
@@ -1173,9 +1174,8 @@ static void aw88166_startup_work(struct work_struct *work)
 	struct aw88166 *aw88166 =
 		container_of(work, struct aw88166, start_work.work);
 
-	mutex_lock(&aw88166->lock);
+	guard(mutex)(&aw88166->lock);
 	aw88166_start_pa(aw88166);
-	mutex_unlock(&aw88166->lock);
 }
 
 static void aw88166_start(struct aw88166 *aw88166, bool sync_start)
@@ -1413,11 +1413,10 @@ static int aw88166_profile_set(struct snd_kcontrol *kcontrol,
 	struct aw88166 *aw88166 = snd_soc_component_get_drvdata(codec);
 	int ret;
 
-	mutex_lock(&aw88166->lock);
+	guard(mutex)(&aw88166->lock);
 	ret = aw88166_dev_set_profile_index(aw88166->aw_pa, ucontrol->value.integer.value[0]);
 	if (ret) {
 		dev_dbg(codec->dev, "profile index does not change");
-		mutex_unlock(&aw88166->lock);
 		return 0;
 	}
 
@@ -1426,8 +1425,6 @@ static int aw88166_profile_set(struct snd_kcontrol *kcontrol,
 		aw88166_start(aw88166, AW88166_SYNC_START);
 	}
 
-	mutex_unlock(&aw88166->lock);
-
 	return 1;
 }
 
@@ -1607,12 +1604,12 @@ static int aw88166_request_firmware_file(struct aw88166 *aw88166)
 		return ret;
 	}
 
-	mutex_lock(&aw88166->lock);
-	/* aw device init */
-	ret = aw88166_dev_init(aw88166, aw88166->aw_cfg);
-	if (ret)
-		dev_err(aw88166->aw_pa->dev, "dev init failed\n");
-	mutex_unlock(&aw88166->lock);
+	scoped_guard(mutex, &aw88166->lock) {
+		/* aw device init */
+		ret = aw88166_dev_init(aw88166, aw88166->aw_cfg);
+		if (ret)
+			dev_err(aw88166->aw_pa->dev, "dev init failed\n");
+	}
 
 	return ret;
 }
@@ -1639,7 +1636,7 @@ static int aw88166_playback_event(struct snd_soc_dapm_widget *w,
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 	struct aw88166 *aw88166 = snd_soc_component_get_drvdata(component);
 
-	mutex_lock(&aw88166->lock);
+	guard(mutex)(&aw88166->lock);
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
 		aw88166_start(aw88166, AW88166_ASYNC_START);
@@ -1650,7 +1647,6 @@ static int aw88166_playback_event(struct snd_soc_dapm_widget *w,
 	default:
 		break;
 	}
-	mutex_unlock(&aw88166->lock);
 
 	return 0;
 }
-- 
2.43.0