net: ethernet: marvell: mvneta: fix fixed-link phydev leaks

Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.

Fixes: 83895bedeee6 ("net: mvneta: add support for fixed links")
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 0c0a45af950f..707bc4680b9b 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -4191,6 +4191,8 @@ err_clk:
         clk_disable_unprepare(pp->clk);
 err_put_phy_node:
         of_node_put(phy_node);
+        if (of_phy_is_fixed_link(dn))
+                of_phy_deregister_fixed_link(dn);
 err_free_irq:
         irq_dispose_mapping(dev->irq);
 err_free_netdev:
@@ -4202,6 +4204,7 @@ err_free_netdev:
 static int mvneta_remove(struct platform_device *pdev)
 {
         struct net_device  *dev = platform_get_drvdata(pdev);
+        struct device_node *dn = pdev->dev.of_node;
         struct mvneta_port *pp = netdev_priv(dev);
 
         unregister_netdev(dev);
@@ -4209,6 +4212,8 @@ static int mvneta_remove(struct platform_device *pdev)
         clk_disable_unprepare(pp->clk);
         free_percpu(pp->ports);
         free_percpu(pp->stats);
+        if (of_phy_is_fixed_link(dn))
+                of_phy_deregister_fixed_link(dn);
         irq_dispose_mapping(dev->irq);
         of_node_put(pp->phy_node);
         free_netdev(dev);