Subject: [PATCH net 09/16] net: ethernet: gianfar: fix fixed-link phydev leaks

From: Johan Hovold <[email-masked]>
Date: Mon, 28 Nov 2016 19:25:02 +0100

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: be40364544bd ("gianfar: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <[email-masked]>
---
 drivers/net/ethernet/freescale/gianfar.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 4b4f5bc0e279..9061c2f82b9c 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -1312,6 +1312,7 @@ static void gfar_init_addr_hash_table(struct gfar_private *priv)
  */
 static int gfar_probe(struct platform_device *ofdev)
 {
+	struct device_node *np = ofdev->dev.of_node;
 	struct net_device *dev = NULL;
 	struct gfar_private *priv = NULL;
 	int err = 0, i;
@@ -1462,6 +1463,8 @@ static int gfar_probe(struct platform_device *ofdev)
 	return 0;
 
 register_fail:
+	if (of_phy_is_fixed_link(np))
+		of_phy_deregister_fixed_link(np);
 	unmap_group_regs(priv);
 	gfar_free_rx_queues(priv);
 	gfar_free_tx_queues(priv);
@@ -1474,11 +1477,16 @@ static int gfar_probe(struct platform_device *ofdev)
 static int gfar_remove(struct platform_device *ofdev)
 {
 	struct gfar_private *priv = platform_get_drvdata(ofdev);
+	struct device_node *np = ofdev->dev.of_node;
 
 	of_node_put(priv->phy_node);
 	of_node_put(priv->tbi_node);
 
 	unregister_netdev(priv->ndev);
+
+	if (of_phy_is_fixed_link(np))
+		of_phy_deregister_fixed_link(np);
+
 	unmap_group_regs(priv);
 	gfar_free_rx_queues(priv);
 	gfar_free_tx_queues(priv);
-- 
2.7.3