[PATCH 16/26] ASoC: codecs: wm0010: Use guard() for mutex & spin locks

[phucduc.bui@gmail.com]

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

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

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/codecs/wm0010.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index 2a8c61a72c17..58c0c601ee6c 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -9,6 +9,7 @@
  *          Scott Ling <sl@opensource.wolfsonmicro.com>
  */
 
+#include <linux/cleanup.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/interrupt.h>
@@ -148,13 +149,11 @@ static const char *wm0010_state_to_str(enum wm0010_state state)
 static void wm0010_halt(struct snd_soc_component *component)
 {
 	struct wm0010_priv *wm0010 = snd_soc_component_get_drvdata(component);
-	unsigned long flags;
 	enum wm0010_state state;
 
 	/* Fetch the wm0010 state */
-	spin_lock_irqsave(&wm0010->irq_lock, flags);
-	state = wm0010->state;
-	spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+	scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+		state = wm0010->state;
 
 	switch (state) {
 	case WM0010_POWER_OFF:
@@ -173,9 +172,8 @@ static void wm0010_halt(struct snd_soc_component *component)
 		break;
 	}
 
-	spin_lock_irqsave(&wm0010->irq_lock, flags);
-	wm0010->state = WM0010_POWER_OFF;
-	spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+	scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+		wm0010->state = WM0010_POWER_OFF;
 }
 
 struct wm0010_boot_xfer {
@@ -190,11 +188,9 @@ struct wm0010_boot_xfer {
 static void wm0010_mark_boot_failure(struct wm0010_priv *wm0010)
 {
 	enum wm0010_state state;
-	unsigned long flags;
 
-	spin_lock_irqsave(&wm0010->irq_lock, flags);
-	state = wm0010->state;
-	spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+	scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+		state = wm0010->state;
 
 	dev_err(wm0010->dev, "Failed to transition from `%s' state to `%s' state\n",
 		wm0010_state_to_str(state), wm0010_state_to_str(state + 1));
@@ -734,9 +730,8 @@ static int wm0010_set_bias_level(struct snd_soc_component *component,
 		break;
 	case SND_SOC_BIAS_STANDBY:
 		if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_PREPARE) {
-			mutex_lock(&wm0010->lock);
-			wm0010_halt(component);
-			mutex_unlock(&wm0010->lock);
+			scoped_guard(mutex, &wm0010->lock)
+				wm0010_halt(component);
 		}
 		break;
 	case SND_SOC_BIAS_OFF:
@@ -832,9 +827,8 @@ static irqreturn_t wm0010_irq(int irq, void *data)
 	case WM0010_OUT_OF_RESET:
 	case WM0010_BOOTROM:
 	case WM0010_STAGE2:
-		spin_lock(&wm0010->irq_lock);
-		complete(&wm0010->boot_completion);
-		spin_unlock(&wm0010->irq_lock);
+		scoped_guard(spinlock, &wm0010->irq_lock)
+			complete(&wm0010->boot_completion);
 		return IRQ_HANDLED;
 	default:
 		return IRQ_NONE;
-- 
2.43.0