[PATCH v4 01/24] ASoC: codecs: ab8500: Use guard() for mutex locks

From: bui duc phuc <[email protected]>

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

Reviewed-by: Cezary Rojewski <[email protected]>
Signed-off-by: bui duc phuc <[email protected]>
---
 sound/soc/codecs/ab8500-codec.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index 6e8ef9cd1b31..2cf96cbdd294 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -14,6 +14,7 @@
  *         for ST-Ericsson.
  */
 
+#include <linux/cleanup.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/device.h>
@@ -989,9 +990,8 @@ static int sid_status_control_get(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	struct ab8500_codec_drvdata *drvdata = dev_get_drvdata(component->dev);
 
-	mutex_lock(&drvdata->ctrl_lock);
+	guard(mutex)(&drvdata->ctrl_lock);
 	ucontrol->value.enumerated.item[0] = drvdata->sid_status;
-	mutex_unlock(&drvdata->ctrl_lock);
 
 	return 0;
 }
@@ -1014,7 +1014,7 @@ static int sid_status_control_put(struct snd_kcontrol *kcontrol,
 		return -EIO;
 	}
 
-	mutex_lock(&drvdata->ctrl_lock);
+	guard(mutex)(&drvdata->ctrl_lock);
 
 	sidconf = snd_soc_component_read(component, AB8500_SIDFIRCONF);
 	if (((sidconf & BIT(AB8500_SIDFIRCONF_FIRSIDBUSY)) != 0)) {
@@ -1025,7 +1025,8 @@ static int sid_status_control_put(struct snd_kcontrol *kcontrol,
 		} else {
 			status = -EBUSY;
 		}
-		goto out;
+		dev_dbg(component->dev, "%s: Exit\n", __func__);
+		return status;
 	}
 
 	snd_soc_component_write(component, AB8500_SIDFIRADR, 0);
@@ -1043,9 +1044,6 @@ static int sid_status_control_put(struct snd_kcontrol *kcontrol,
 
 	drvdata->sid_status = SID_FIR_CONFIGURED;
 
-out:
-	mutex_unlock(&drvdata->ctrl_lock);
-
 	dev_dbg(component->dev, "%s: Exit\n", __func__);
 
 	return status;
-- 
2.43.0