[PATCH 3/9] ASoc: qcom: q6afe: Use guard() for mutex locks

[phucduc . bui]

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

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

Signed-off-by: bui duc phuc <phucduc.bui@xxxxxxxxx>
---

NOTE: This patch is compile-tested only.

 sound/soc/qcom/qdsp6/q6afe.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6afe.c b/sound/soc/qcom/qdsp6/q6afe.c
index 40237267fda0..81a93b6f7e4c 100644
--- a/sound/soc/qcom/qdsp6/q6afe.c
+++ b/sound/soc/qcom/qdsp6/q6afe.c
@@ -1035,7 +1035,7 @@ static int afe_apr_send_pkt(struct q6afe *afe, struct apr_pkt *pkt,
 	struct aprv2_ibasic_rsp_result_t *result;
 	int ret;
 
-	mutex_lock(&afe->lock);
+	guard(mutex)(&afe->lock);
 	if (port) {
 		wait = &port->wait;
 		result = &port->result;
@@ -1050,8 +1050,7 @@ static int afe_apr_send_pkt(struct q6afe *afe, struct apr_pkt *pkt,
 	ret = apr_send_pkt(afe->apr, pkt);
 	if (ret < 0) {
 		dev_err(afe->dev, "packet not transmitted (%d)\n", ret);
-		ret = -EINVAL;
-		goto err;
+		return -EINVAL;
 	}
 
 	ret = wait_event_timeout(*wait, (result->opcode == rsp_opcode),
@@ -1066,9 +1065,6 @@ static int afe_apr_send_pkt(struct q6afe *afe, struct apr_pkt *pkt,
 		ret = 0;
 	}
 
-err:
-	mutex_unlock(&afe->lock);
-
 	return ret;
 }
 
-- 
2.43.0