netdev - [PATCH 1/2] net: macb: add of_phy_deregister_fixed

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Message-Id: <20171106111005.2999-1-m.grzeschik@pengutronix.de>
Date:   Mon,  6 Nov 2017 12:10:04 +0100
From:   Michael Grzeschik <m.grzeschik@...gutronix.de>
To:     nicolas.ferre@...rochip.com
Cc:     netdev@...r.kernel.org, kernel@...gutronix.de, andrew@...n.ch
Subject: [PATCH 1/2] net: macb: add of_phy_deregister_fixed_link to error paths

We add the call of_phy_deregister_fixed_link to all associated
error paths for memory clean up.

Signed-off-by: Michael Grzeschik <m.grzeschik@...gutronix.de>
---
 drivers/net/ethernet/cadence/macb_main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 6df2cad61647a..2c2acd011329a 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -611,6 +611,8 @@ static int macb_mii_init(struct macb *bp)
 err_out_unregister_bus:
 	mdiobus_unregister(bp->mii_bus);
 err_out_free_mdiobus:
+	if ((np) && (of_phy_is_fixed_link(np)))
+		of_phy_deregister_fixed_link(np);
 	mdiobus_free(bp->mii_bus);
 err_out:
 	return err;
@@ -3552,6 +3554,8 @@ static int macb_probe(struct platform_device *pdev)
 err_out_unregister_mdio:
 	phy_disconnect(dev->phydev);
 	mdiobus_unregister(bp->mii_bus);
+	if ((np) && (of_phy_is_fixed_link(np)))
+		of_phy_deregister_fixed_link(np);
 	mdiobus_free(bp->mii_bus);
 
 	/* Shutdown the PHY if there is a GPIO reset */
@@ -3574,6 +3578,7 @@ static int macb_remove(struct platform_device *pdev)
 {
 	struct net_device *dev;
 	struct macb *bp;
+	struct device_node *np = pdev->dev.of_node;
 
 	dev = platform_get_drvdata(pdev);
 
@@ -3582,6 +3587,8 @@ static int macb_remove(struct platform_device *pdev)
 		if (dev->phydev)
 			phy_disconnect(dev->phydev);
 		mdiobus_unregister(bp->mii_bus);
+		if ((np) && (of_phy_is_fixed_link(np)))
+			of_phy_deregister_fixed_link(np);
 		dev->phydev = NULL;
 		mdiobus_free(bp->mii_bus);
 
-- 
2.11.0