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From: Rosen Penev <rosenp@gmail.com>
To: netdev@vger.kernel.org
Cc: Chris Snook <chris.snook@gmail.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Russell King <linux@armlinux.org.uk> (maintainer:SFF/SFP/SFP+
	MODULE SUPPORT:Keyword:phylink\.h|struct\s+phylink|\.phylink|>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH net 1/3] Revert "net: ag71xx: use devm for register_netdev"
Date: Mon,  2 Feb 2026 13:46:32 -0800	[thread overview]
Message-ID: <20260202214634.72738-1-rosenp@gmail.com> (raw)

This reverts commit cc20a4791641a1cbd1525695fac0d4725dd72509.

register_netdev gets called after phylink_create which has no devm
equivalent. phylink_destroy must be called after unregister_netdev and
not before.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/net/ethernet/atheros/ag71xx.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index cbc730c7cff2..f2f12642529e 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1926,7 +1926,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 		return dev_err_probe(&pdev->dev, err,
 				     "failed to setup phylink");
 
-	err = devm_register_netdev(&pdev->dev, ndev);
+	err = register_netdev(ndev);
 	if (err) {
 		netif_err(ag, probe, ndev, "unable to register net device\n");
 		return err;
@@ -1939,6 +1939,17 @@ static int ag71xx_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static void ag71xx_remove(struct platform_device *pdev)
+{
+	struct net_device *ndev = platform_get_drvdata(pdev);
+
+	if (!ndev)
+		return;
+
+	unregister_netdev(ndev);
+	platform_set_drvdata(pdev, NULL);
+}
+
 static const u32 ar71xx_fifo_ar7100[] = {
 	0x0fff0000, 0x00001fff, 0x00780fff,
 };
@@ -2024,6 +2035,7 @@ MODULE_DEVICE_TABLE(of, ag71xx_match);
 
 static struct platform_driver ag71xx_driver = {
 	.probe		= ag71xx_probe,
+	.remove_new	= ag71xx_remove,
 	.driver = {
 		.name	= "ag71xx",
 		.of_match_table = ag71xx_match,
-- 
2.52.0


             reply	other threads:[~2026-02-02 21:46 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-02 21:46 Rosen Penev [this message]
2026-02-02 21:46 ` [PATCH net 2/3] Revert "net: ag71xx: remove platform_set_drvdata" Rosen Penev
2026-02-02 21:46 ` [PATCH net 3/3] net: ag71xx: call phylink_destroy on failure Rosen Penev
2026-02-04  3:32   ` Jakub Kicinski
2026-02-03 10:28 ` [PATCH net 1/3] Revert "net: ag71xx: use devm for register_netdev" Bartosz Golaszewski
2026-02-03 19:52   ` Rosen Penev

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