linux-kernel - [PATCH net-next 1/4] net: ucc

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Message-ID: <20241104210127.307420-2-rosenp@gmail.com>
Date: Mon,  4 Nov 2024 13:01:24 -0800
From: Rosen Penev <rosenp@...il.com>
To: netdev@...r.kernel.org
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	maxime.chevallier@...tlin.com,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	linuxppc-dev@...ts.ozlabs.org (open list:FREESCALE QUICC ENGINE UCC ETHERNET DRIVER),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net-next 1/4] net: ucc_geth: use devm for kmemdup

Avoids manual frees for it. Funny enough the free in _remove should be
the last thing done.

Signed-off-by: Rosen Penev <rosenp@...il.com>
---
 drivers/net/ethernet/freescale/ucc_geth.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index a7dd0a2ead86..4bf5ff5642e7 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3594,22 +3594,23 @@ static int ucc_geth_probe(struct platform_device* ofdev)
 	if ((ucc_num < 0) || (ucc_num > 7))
 		return -ENODEV;
 
-	ug_info = kmemdup(&ugeth_primary_info, sizeof(*ug_info), GFP_KERNEL);
-	if (ug_info == NULL)
+	ug_info = devm_kmemdup(&ofdev->dev, &ugeth_primary_info,
+			       sizeof(*ug_info), GFP_KERNEL);
+	if (!ug_info)
 		return -ENOMEM;
 
 	ug_info->uf_info.ucc_num = ucc_num;
 
 	err = ucc_geth_parse_clock(np, "rx", &ug_info->uf_info.rx_clock);
 	if (err)
-		goto err_free_info;
+		return err;
 	err = ucc_geth_parse_clock(np, "tx", &ug_info->uf_info.tx_clock);
 	if (err)
-		goto err_free_info;
+		return err;
 
 	err = of_address_to_resource(np, 0, &res);
 	if (err)
-		goto err_free_info;
+		return err;
 
 	ug_info->uf_info.regs = res.start;
 	ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
@@ -3622,7 +3623,7 @@ static int ucc_geth_probe(struct platform_device* ofdev)
 		 */
 		err = of_phy_register_fixed_link(np);
 		if (err)
-			goto err_free_info;
+			return err;
 		ug_info->phy_node = of_node_get(np);
 	}
 
@@ -3751,9 +3752,6 @@ static int ucc_geth_probe(struct platform_device* ofdev)
 		of_phy_deregister_fixed_link(np);
 	of_node_put(ug_info->tbi_node);
 	of_node_put(ug_info->phy_node);
-err_free_info:
-	kfree(ug_info);
-
 	return err;
 }
 
@@ -3769,7 +3767,6 @@ static void ucc_geth_remove(struct platform_device* ofdev)
 		of_phy_deregister_fixed_link(np);
 	of_node_put(ugeth->ug_info->tbi_node);
 	of_node_put(ugeth->ug_info->phy_node);
-	kfree(ugeth->ug_info);
 	free_netdev(dev);
 }
 
-- 
2.47.0