[PATCH 23/26] ASoC: codecs: wm8994: 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.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/codecs/wm8994.c | 30 ++++++++----------------------
 1 file changed, 8 insertions(+), 22 deletions(-)

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 1d64c7c42ed1..8bf58a6a8af7 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.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>
@@ -766,7 +767,7 @@ static void active_reference(struct snd_soc_component *component)
 {
 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
 
-	mutex_lock(&wm8994->accdet_lock);
+	guard(mutex)(&wm8994->accdet_lock);
 
 	wm8994->active_refcount++;
 
@@ -775,8 +776,6 @@ static void active_reference(struct snd_soc_component *component)
 
 	/* If we're using jack detection go into audio mode */
 	wm1811_jackdet_set_mode(component, WM1811_JACKDET_MODE_AUDIO);
-
-	mutex_unlock(&wm8994->accdet_lock);
 }
 
 static void active_dereference(struct snd_soc_component *component)
@@ -784,7 +783,7 @@ static void active_dereference(struct snd_soc_component *component)
 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
 	u16 mode;
 
-	mutex_lock(&wm8994->accdet_lock);
+	guard(mutex)(&wm8994->accdet_lock);
 
 	wm8994->active_refcount--;
 
@@ -800,8 +799,6 @@ static void active_dereference(struct snd_soc_component *component)
 
 		wm1811_jackdet_set_mode(component, mode);
 	}
-
-	mutex_unlock(&wm8994->accdet_lock);
 }
 
 static int clk_sys_event(struct snd_soc_dapm_widget *w,
@@ -3704,7 +3701,7 @@ static void wm8958_open_circuit_work(struct work_struct *work)
 						  open_circuit_work.work);
 	struct device *dev = wm8994->wm8994->dev;
 
-	mutex_lock(&wm8994->accdet_lock);
+	guard(mutex)(&wm8994->accdet_lock);
 
 	wm1811_micd_stop(wm8994->hubs.component);
 
@@ -3718,8 +3715,6 @@ static void wm8958_open_circuit_work(struct work_struct *work)
 	snd_soc_jack_report(wm8994->micdet[0].jack, 0,
 			    wm8994->btn_mask |
 			    SND_JACK_HEADSET);
-
-	mutex_unlock(&wm8994->accdet_lock);
 }
 
 static void wm8958_mic_id(void *data, u16 status)
@@ -3777,7 +3772,7 @@ static void wm1811_mic_work(struct work_struct *work)
 	struct snd_soc_component *component = wm8994->hubs.component;
 	struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
 
-	pm_runtime_get_sync(component->dev);
+	guard(pm_runtime_active)(component->dev);
 
 	/* If required for an external cap force MICBIAS on */
 	if (control->pdata.jd_ext_cap) {
@@ -3785,7 +3780,7 @@ static void wm1811_mic_work(struct work_struct *work)
 		snd_soc_dapm_sync(dapm);
 	}
 
-	mutex_lock(&wm8994->accdet_lock);
+	guard(mutex)(&wm8994->accdet_lock);
 
 	dev_dbg(component->dev, "Starting mic detection\n");
 
@@ -3803,10 +3798,6 @@ static void wm1811_mic_work(struct work_struct *work)
 		snd_soc_component_update_bits(component, WM8958_MIC_DETECT_1,
 				    WM8958_MICD_ENA, WM8958_MICD_ENA);
 	}
-
-	mutex_unlock(&wm8994->accdet_lock);
-
-	pm_runtime_put(component->dev);
 }
 
 static irqreturn_t wm1811_jackdet_irq(int irq, void *data)
@@ -4026,15 +4017,10 @@ static void wm8958_mic_work(struct work_struct *work)
 						  mic_complete_work.work);
 	struct snd_soc_component *component = wm8994->hubs.component;
 
-	pm_runtime_get_sync(component->dev);
-
-	mutex_lock(&wm8994->accdet_lock);
+	guard(pm_runtime_active)(component->dev);
+	guard(mutex)(&wm8994->accdet_lock);
 
 	wm8994->mic_id_cb(wm8994->mic_id_cb_data, wm8994->mic_status);
-
-	mutex_unlock(&wm8994->accdet_lock);
-
-	pm_runtime_put(component->dev);
 }
 
 static irqreturn_t wm8958_mic_irq(int irq, void *data)
-- 
2.43.0