netdev - [PATCH v2 net] net: phy: fixed_phy: fix missing calls to gpiod_put in fixed_mdio_bus

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Message-ID: <e4d58e2b-616c-41b9-a3d3-750518dc23bc@gmail.com>
Date: Tue, 26 Aug 2025 21:11:02 +0200
From: Heiner Kallweit <hkallweit1@...il.com>
To: Andrew Lunn <andrew@...n.ch>, Andrew Lunn <andrew+netdev@...n.ch>,
 Russell King - ARM Linux <linux@...linux.org.uk>,
 Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
 David Miller <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH v2 net] net: phy: fixed_phy: fix missing calls to gpiod_put in
 fixed_mdio_bus_exit

Cleanup in fixed_mdio_bus_exit() misses to call gpiod_put().
Easiest fix is to call fixed_phy_del() for each possible phy address.
This may consume a few cpu cycles more, but is much easier to read.

Fixes: a5597008dbc2 ("phy: fixed_phy: Add gpio to determine link up/down.")
Cc: stable@...r.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
v2:
- rebase for net
---
 drivers/net/phy/fixed_phy.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c
index 033656d57..a1db96944 100644
--- a/drivers/net/phy/fixed_phy.c
+++ b/drivers/net/phy/fixed_phy.c
@@ -352,17 +352,13 @@ module_init(fixed_mdio_bus_init);
 static void __exit fixed_mdio_bus_exit(void)
 {
 	struct fixed_mdio_bus *fmb = &platform_fmb;
-	struct fixed_phy *fp, *tmp;
 
 	mdiobus_unregister(fmb->mii_bus);
 	mdiobus_free(fmb->mii_bus);
 	faux_device_destroy(fdev);
 
-	list_for_each_entry_safe(fp, tmp, &fmb->phys, node) {
-		list_del(&fp->node);
-		kfree(fp);
-	}
-	ida_destroy(&phy_fixed_ida);
+	for (int i = 0; i < PHY_MAX_ADDR; i++)
+		fixed_phy_del(i);
 }
 module_exit(fixed_mdio_bus_exit);
 
-- 
2.50.1