[PATCH 4/7] ASoC: ti: omap-mcpdm: 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/ti/omap-mcpdm.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/soc/ti/omap-mcpdm.c b/sound/soc/ti/omap-mcpdm.c
index 1a5d19937c64..c7d7b502f120 100644
--- a/sound/soc/ti/omap-mcpdm.c
+++ b/sound/soc/ti/omap-mcpdm.c
@@ -251,13 +251,11 @@ static int omap_mcpdm_dai_startup(struct snd_pcm_substream *substream,
 {
 	struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
 
-	mutex_lock(&mcpdm->mutex);
+	guard(mutex)(&mcpdm->mutex);
 
 	if (!snd_soc_dai_active(dai))
 		omap_mcpdm_open_streams(mcpdm);
 
-	mutex_unlock(&mcpdm->mutex);
-
 	return 0;
 }
 
@@ -269,7 +267,7 @@ static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream,
 	int stream1 = tx ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE;
 	int stream2 = tx ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 
-	mutex_lock(&mcpdm->mutex);
+	guard(mutex)(&mcpdm->mutex);
 
 	if (!snd_soc_dai_active(dai)) {
 		if (omap_mcpdm_active(mcpdm)) {
@@ -287,8 +285,6 @@ static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream,
 		cpu_latency_qos_remove_request(&mcpdm->pm_qos_req);
 
 	mcpdm->latency[stream1] = 0;
-
-	mutex_unlock(&mcpdm->mutex);
 }
 
 static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
-- 
2.43.0