[PATCH v2 07/11] ASoC: fsl_xcvr: Use guard() for spin locks

[phucduc.bui at gmail.com]

From: bui duc phuc <phucduc.bui at 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 at gmail.com>
---
 sound/soc/fsl/fsl_xcvr.c | 29 ++++++++++++-----------------
 1 file changed, 12 insertions(+), 17 deletions(-)

diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index 6677d3bf36ec..41d100500534 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -797,10 +797,9 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 {
 	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
 	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
-	unsigned long lock_flags;
 	int ret = 0;
 
-	spin_lock_irqsave(&xcvr->lock, lock_flags);
+	guard(spinlock_irqsave)(&xcvr->lock);
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -812,7 +811,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 					 FSL_XCVR_EXT_CTRL_DPTH_RESET(tx));
 		if (ret < 0) {
 			dev_err(dai->dev, "Failed to set DPATH RESET: %d\n", ret);
-			goto release_lock;
+			return ret;
 		}
 
 		if (tx) {
@@ -824,7 +823,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 						   FSL_XCVR_ISR_CMDC_TX_EN);
 				if (ret < 0) {
 					dev_err(dai->dev, "err updating isr %d\n", ret);
-					goto release_lock;
+					return ret;
 				}
 				fallthrough;
 			case FSL_XCVR_MODE_SPDIF:
@@ -833,7 +832,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 						      FSL_XCVR_TX_DPTH_CTRL_STRT_DATA_TX);
 				if (ret < 0) {
 					dev_err(dai->dev, "Failed to start DATA_TX: %d\n", ret);
-					goto release_lock;
+					return ret;
 				}
 				break;
 			}
@@ -844,14 +843,14 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 					 FSL_XCVR_EXT_CTRL_DMA_DIS(tx), 0);
 		if (ret < 0) {
 			dev_err(dai->dev, "Failed to enable DMA: %d\n", ret);
-			goto release_lock;
+			return ret;
 		}
 
 		ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0,
 					 FSL_XCVR_IRQ_EARC_ALL, FSL_XCVR_IRQ_EARC_ALL);
 		if (ret < 0) {
 			dev_err(dai->dev, "Error while setting IER0: %d\n", ret);
-			goto release_lock;
+			return ret;
 		}
 
 		/* clear DPATH RESET */
@@ -860,7 +859,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 					 0);
 		if (ret < 0) {
 			dev_err(dai->dev, "Failed to clear DPATH RESET: %d\n", ret);
-			goto release_lock;
+			return ret;
 		}
 
 		break;
@@ -873,14 +872,14 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 					 FSL_XCVR_EXT_CTRL_DMA_DIS(tx));
 		if (ret < 0) {
 			dev_err(dai->dev, "Failed to disable DMA: %d\n", ret);
-			goto release_lock;
+			return ret;
 		}
 
 		ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0,
 					 FSL_XCVR_IRQ_EARC_ALL, 0);
 		if (ret < 0) {
 			dev_err(dai->dev, "Failed to clear IER0: %d\n", ret);
-			goto release_lock;
+			return ret;
 		}
 
 		if (tx) {
@@ -891,7 +890,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 							FSL_XCVR_TX_DPTH_CTRL_STRT_DATA_TX);
 				if (ret < 0) {
 					dev_err(dai->dev, "Failed to stop DATA_TX: %d\n", ret);
-					goto release_lock;
+					return ret;
 				}
 				if (xcvr->soc_data->spdif_only)
 					break;
@@ -905,7 +904,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 				if (ret < 0) {
 					dev_err(dai->dev,
 						"Err updating ISR %d\n", ret);
-					goto release_lock;
+					return ret;
 				}
 				break;
 			}
@@ -916,8 +915,6 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
 		break;
 	}
 
-release_lock:
-	spin_unlock_irqrestore(&xcvr->lock, lock_flags);
 	return ret;
 }
 
@@ -1448,11 +1445,10 @@ static void reset_rx_work(struct work_struct *work)
 {
 	struct fsl_xcvr *xcvr = container_of(work, struct fsl_xcvr, work_rst);
 	struct device *dev = &xcvr->pdev->dev;
-	unsigned long lock_flags;
 	u32 ext_ctrl;
 
 	dev_dbg(dev, "reset rx path\n");
-	spin_lock_irqsave(&xcvr->lock, lock_flags);
+	guard(spinlock_irqsave)(&xcvr->lock);
 	regmap_read(xcvr->regmap, FSL_XCVR_EXT_CTRL, &ext_ctrl);
 
 	if (!(ext_ctrl & FSL_XCVR_EXT_CTRL_DMA_RD_DIS)) {
@@ -1469,7 +1465,6 @@ static void reset_rx_work(struct work_struct *work)
 				   FSL_XCVR_EXT_CTRL_RX_DPTH_RESET,
 				   0);
 	}
-	spin_unlock_irqrestore(&xcvr->lock, lock_flags);
 }
 
 static irqreturn_t irq0_isr(int irq, void *devid)
-- 
2.43.0