[PATCH net v2 2/4] net: dsa: realtek: use devm_mutex_init for regmap lock

[Luiz Angelo Daros de Luca <luizluca@gmail.com>]

With CONFIG_DEBUG_MUTEXES enabled, mutex_destroy() needs to be called
before the lock is discarded. Use devm_mutex_init() instead so the
cleanup is handled automatically.

Fixes: 907e772f6f6de ("net: dsa: realtek: allow subdrivers to externally lock regmap")
Reviewed-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
---
 drivers/net/dsa/realtek/rtl83xx.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/realtek/rtl83xx.c b/drivers/net/dsa/realtek/rtl83xx.c
index 71124ecca92f..9402bfe4f85a 100644
--- a/drivers/net/dsa/realtek/rtl83xx.c
+++ b/drivers/net/dsa/realtek/rtl83xx.c
@@ -156,7 +156,10 @@ rtl83xx_probe(struct device *dev,
 	if (!priv)
 		return ERR_PTR(-ENOMEM);
 
-	mutex_init(&priv->map_lock);
+	ret = devm_mutex_init(dev, &priv->map_lock);
+	if (ret)
+		return ERR_PTR(ret);
+
 	mutex_init(&priv->vlan_lock);
 	mutex_init(&priv->l2_lock);
 

-- 
2.55.0