[PATCH 2/2] ASoC: img: img-spdif-out: Use guard() for spin locks

[phucduc . bui]

From: bui duc phuc <phucduc.bui@xxxxxxxxx>

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

Signed-off-by: bui duc phuc <phucduc.bui@xxxxxxxxx>
---
 sound/soc/img/img-spdif-out.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/sound/soc/img/img-spdif-out.c b/sound/soc/img/img-spdif-out.c
index 52f696219ef4..39a37e4830d8 100644
--- a/sound/soc/img/img-spdif-out.c
+++ b/sound/soc/img/img-spdif-out.c
@@ -135,9 +135,8 @@ static int img_spdif_out_get_status(struct snd_kcontrol *kcontrol,
 	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);
 	u32 reg;
-	unsigned long flags;
 
-	spin_lock_irqsave(&spdif->lock, flags);
+	guard(spinlock_irqsave)(&spdif->lock);
 
 	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);
 	ucontrol->value.iec958.status[0] = reg & 0xff;
@@ -150,8 +149,6 @@ static int img_spdif_out_get_status(struct snd_kcontrol *kcontrol,
 		(reg & IMG_SPDIF_OUT_CSH_UV_CSH_MASK) >>
 		IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT;
 
-	spin_unlock_irqrestore(&spdif->lock, flags);
-
 	return 0;
 }
 
@@ -161,14 +158,13 @@ static int img_spdif_out_set_status(struct snd_kcontrol *kcontrol,
 	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);
 	u32 reg;
-	unsigned long flags;
 
 	reg = ((u32)ucontrol->value.iec958.status[3] << 24);
 	reg |= ((u32)ucontrol->value.iec958.status[2] << 16);
 	reg |= ((u32)ucontrol->value.iec958.status[1] << 8);
 	reg |= (u32)ucontrol->value.iec958.status[0];
 
-	spin_lock_irqsave(&spdif->lock, flags);
+	guard(spinlock_irqsave)(&spdif->lock);
 
 	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSL);
 
@@ -178,8 +174,6 @@ static int img_spdif_out_set_status(struct snd_kcontrol *kcontrol,
 			IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT;
 	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSH_UV);
 
-	spin_unlock_irqrestore(&spdif->lock, flags);
-
 	return 0;
 }
 
@@ -205,7 +199,6 @@ static int img_spdif_out_trigger(struct snd_pcm_substream *substream, int cmd,
 {
 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);
 	u32 reg;
-	unsigned long flags;
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -218,9 +211,8 @@ static int img_spdif_out_trigger(struct snd_pcm_substream *substream, int cmd,
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		spin_lock_irqsave(&spdif->lock, flags);
-		img_spdif_out_reset(spdif);
-		spin_unlock_irqrestore(&spdif->lock, flags);
+		scoped_guard(spinlock_irqsave, &spdif->lock)
+			img_spdif_out_reset(spdif);
 		break;
 	default:
 		return -EINVAL;
-- 
2.43.0