[PATCH] ASoC: apple: mca: 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/apple/mca.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/sound/soc/apple/mca.c b/sound/soc/apple/mca.c
index 39269cc7def6..492165c0e1ea 100644
--- a/sound/soc/apple/mca.c
+++ b/sound/soc/apple/mca.c
@@ -307,7 +307,7 @@ static bool mca_fe_clocks_in_use(struct mca_cluster *cl)
 	struct mca_cluster *be_cl;
 	int stream, i;
 
-	mutex_lock(&mca->port_mutex);
+	guard(mutex)(&mca->port_mutex);
 	for (i = 0; i < mca->nclusters; i++) {
 		be_cl = &mca->clusters[i];
 
@@ -316,12 +316,10 @@ static bool mca_fe_clocks_in_use(struct mca_cluster *cl)
 
 		for_each_pcm_streams(stream) {
 			if (be_cl->clocks_in_use[stream]) {
-				mutex_unlock(&mca->port_mutex);
 				return true;
 			}
 		}
 	}
-	mutex_unlock(&mca->port_mutex);
 	return false;
 }
 
@@ -765,9 +763,8 @@ static int mca_be_startup(struct snd_pcm_substream *substream,
 		       cl->base + REG_PORT_CLOCK_SEL);
 	writel_relaxed(PORT_DATA_SEL_TXA(fe_cl->no),
 		       cl->base + REG_PORT_DATA_SEL);
-	mutex_lock(&mca->port_mutex);
-	cl->port_driver = fe_cl->no;
-	mutex_unlock(&mca->port_mutex);
+	scoped_guard(mutex, &mca->port_mutex)
+		cl->port_driver = fe_cl->no;
 	cl->port_started[substream->stream] = true;
 
 	return 0;
@@ -788,9 +785,8 @@ static void mca_be_shutdown(struct snd_pcm_substream *substream,
 		 */
 		writel_relaxed(0, cl->base + REG_PORT_ENABLES);
 		writel_relaxed(0, cl->base + REG_PORT_DATA_SEL);
-		mutex_lock(&mca->port_mutex);
-		cl->port_driver = -1;
-		mutex_unlock(&mca->port_mutex);
+		scoped_guard(mutex, &mca->port_mutex)
+			cl->port_driver = -1;
 	}
 }
 
-- 
2.43.0