[PATCH 2/5] ASoC: samsung: idma: Use guard() for spin locks

[phucduc.bui@gmail.com]

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

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

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/samsung/idma.c | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c
index cb455ddce253..d362136e1069 100644
--- a/sound/soc/samsung/idma.c
+++ b/sound/soc/samsung/idma.c
@@ -67,9 +67,8 @@ static int idma_enqueue(struct snd_pcm_substream *substream)
 	struct idma_ctrl *prtd = substream->runtime->private_data;
 	u32 val;
 
-	spin_lock(&prtd->lock);
-	prtd->token = (void *) substream;
-	spin_unlock(&prtd->lock);
+	scoped_guard(spinlock, &prtd->lock)
+		prtd->token = (void *) substream;
 
 	/* Internal DMA Level0 Interrupt Address */
 	val = idma.lp_tx_addr + prtd->periodsz;
@@ -101,16 +100,15 @@ static void idma_setcallbk(struct snd_pcm_substream *substream,
 {
 	struct idma_ctrl *prtd = substream->runtime->private_data;
 
-	spin_lock(&prtd->lock);
+	guard(spinlock)(&prtd->lock);
 	prtd->cb = cb;
-	spin_unlock(&prtd->lock);
 }
 
 static void idma_control(int op)
 {
 	u32 val = readl(idma.regs + I2SAHB);
 
-	spin_lock(&idma.lock);
+	guard(spinlock)(&idma.lock);
 
 	switch (op) {
 	case LPAM_DMA_START:
@@ -120,12 +118,10 @@ static void idma_control(int op)
 		val &= ~(AHB_INTENLVL0 | AHB_DMAEN);
 		break;
 	default:
-		spin_unlock(&idma.lock);
 		return;
 	}
 
 	writel(val, idma.regs + I2SAHB);
-	spin_unlock(&idma.lock);
 }
 
 static void idma_done(void *id, int bytes_xfer)
@@ -192,7 +188,7 @@ static int idma_trigger(struct snd_soc_component *component,
 	struct idma_ctrl *prtd = substream->runtime->private_data;
 	int ret = 0;
 
-	spin_lock(&prtd->lock);
+	guard(spinlock)(&prtd->lock);
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_RESUME:
@@ -214,8 +210,6 @@ static int idma_trigger(struct snd_soc_component *component,
 		break;
 	}
 
-	spin_unlock(&prtd->lock);
-
 	return ret;
 }
 
@@ -228,12 +222,10 @@ idma_pointer(struct snd_soc_component *component,
 	dma_addr_t src;
 	unsigned long res;
 
-	spin_lock(&prtd->lock);
-
-	idma_getpos(&src);
-	res = src - prtd->start;
-
-	spin_unlock(&prtd->lock);
+	scoped_guard(spinlock, &prtd->lock) {
+		idma_getpos(&src);
+		res = src - prtd->start;
+	}
 
 	return bytes_to_frames(substream->runtime, res);
 }
-- 
2.43.0