linux-kernel - [PATCHv8 net-next 4/5] net: ibm: emac: use devm for mutex

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Message-ID: <20241022002245.843242-5-rosenp@gmail.com>
Date: Mon, 21 Oct 2024 17:22:44 -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>,
	Simon Horman <horms@...nel.org>,
	Shannon Nelson <shannon.nelson@....com>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCHv8 net-next 4/5] net: ibm: emac: use devm for mutex_init

It seems since inception that mutex_destroy was never called for these
in _remove. Instead of handling this manually, just use devm for
simplicity.

Signed-off-by: Rosen Penev <rosenp@...il.com>
---
 drivers/net/ethernet/ibm/emac/core.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 8c6f69f90af9..1f45f2a78829 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -3021,8 +3021,14 @@ static int emac_probe(struct platform_device *ofdev)
 	SET_NETDEV_DEV(ndev, &ofdev->dev);
 
 	/* Initialize some embedded data structures */
-	mutex_init(&dev->mdio_lock);
-	mutex_init(&dev->link_lock);
+	err = devm_mutex_init(&ofdev->dev, &dev->mdio_lock);
+	if (err)
+		goto err_gone;
+
+	err = devm_mutex_init(&ofdev->dev, &dev->link_lock);
+	if (err)
+		goto err_gone;
+
 	spin_lock_init(&dev->lock);
 	INIT_WORK(&dev->reset_work, emac_reset_work);
 
-- 
2.47.0