linux-kernel - [PATCH net-next 05/12] net: ibm: emac: rgmii: use devm for mutex

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Message-ID: <20241030203727.6039-6-rosenp@gmail.com>
Date: Wed, 30 Oct 2024 13:37:20 -0700
From: Rosen Penev <rosenp@...il.com>
To: netdev@...r.kernel.org
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rosen Penev <rosenp@...il.com>,
	Breno Leitao <leitao@...ian.org>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net-next 05/12] net: ibm: emac: rgmii: use devm for mutex_init

It seems that since inception, this driver never called mutex_destroy in
_remove. Use devm to handle this automatically.

Signed-off-by: Rosen Penev <rosenp@...il.com>
---
 drivers/net/ethernet/ibm/emac/rgmii.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ibm/emac/rgmii.c b/drivers/net/ethernet/ibm/emac/rgmii.c
index 7bafe2edfc50..9063f0a17e25 100644
--- a/drivers/net/ethernet/ibm/emac/rgmii.c
+++ b/drivers/net/ethernet/ibm/emac/rgmii.c
@@ -219,13 +219,17 @@ static int rgmii_probe(struct platform_device *ofdev)
 	struct device_node *np = ofdev->dev.of_node;
 	struct rgmii_instance *dev;
 	struct resource regs;
+	int err;
 
 	dev = devm_kzalloc(&ofdev->dev, sizeof(struct rgmii_instance),
 			   GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;
 
-	mutex_init(&dev->lock);
+	err = devm_mutex_init(&ofdev->dev, &dev->lock);
+	if (err)
+		return err;
+
 	dev->ofdev = ofdev;
 
 	if (of_address_to_resource(np, 0, &regs)) {
-- 
2.47.0