[PATCH v4 16/24] ASoC: codecs: cs42l84: 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]>
Reviewed-by: Charles Keepax <[email protected]>
Signed-off-by: bui duc phuc <[email protected]>
---
 sound/soc/codecs/cs42l84.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/cs42l84.c b/sound/soc/codecs/cs42l84.c
index f2a58163de0e..36533a13319d 100644
--- a/sound/soc/codecs/cs42l84.c
+++ b/sound/soc/codecs/cs42l84.c
@@ -10,6 +10,7 @@
 
 #include <linux/bitfield.h>
 #include <linux/bits.h>
+#include <linux/cleanup.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
@@ -281,10 +282,9 @@ static int cs42l84_set_jack(struct snd_soc_component *component, struct snd_soc_
 	struct cs42l84_private *cs42l84 = snd_soc_component_get_drvdata(component);
 
 	/* Prevent race with interrupt handler */
-	mutex_lock(&cs42l84->irq_lock);
+	guard(mutex)(&cs42l84->irq_lock);
 	cs42l84->jack = jk;
 	snd_soc_jack_report(jk, cs42l84->hs_type, SND_JACK_HEADSET);
-	mutex_unlock(&cs42l84->irq_lock);
 
 	return 0;
 }
@@ -831,7 +831,7 @@ static irqreturn_t cs42l84_irq_thread(int irq, void *data)
 	u8 current_ring_state;
 	int i;
 
-	mutex_lock(&cs42l84->irq_lock);
+	guard(mutex)(&cs42l84->irq_lock);
 	/* Read sticky registers to clear interrupt */
 	for (i = 0; i < ARRAY_SIZE(stickies); i++) {
 		regmap_read(cs42l84->regmap, irq_params_table[i].status_addr,
@@ -902,8 +902,6 @@ static irqreturn_t cs42l84_irq_thread(int irq, void *data)
 				break;
 			}
 
-			mutex_unlock(&cs42l84->irq_lock);
-
 			return IRQ_HANDLED;
 		}
 
@@ -919,8 +917,6 @@ static irqreturn_t cs42l84_irq_thread(int irq, void *data)
 		}
 	}
 
-	mutex_unlock(&cs42l84->irq_lock);
-
 	return IRQ_HANDLED;
 }
 
-- 
2.43.0