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path: root/drivers/net/mdio/of_mdio.c
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Diffstat (limited to 'drivers/net/mdio/of_mdio.c')
-rw-r--r--drivers/net/mdio/of_mdio.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c
index 64ebcb6d235c..9b6cab6154e0 100644
--- a/drivers/net/mdio/of_mdio.c
+++ b/drivers/net/mdio/of_mdio.c
@@ -139,6 +139,11 @@ bool of_mdiobus_child_is_phy(struct device_node *child)
}
EXPORT_SYMBOL(of_mdiobus_child_is_phy);
+static void __of_mdiobus_unregister_callback(struct mii_bus *mdio)
+{
+ of_node_put(mdio->dev.of_node);
+}
+
/**
* __of_mdiobus_register - Register mii_bus and create PHYs from the device tree
* @mdio: pointer to mii_bus structure
@@ -166,6 +171,8 @@ int __of_mdiobus_register(struct mii_bus *mdio, struct device_node *np,
* the device tree are populated after the bus has been registered */
mdio->phy_mask = ~0;
+ mdio->__unregister_callback = __of_mdiobus_unregister_callback;
+ of_node_get(np);
device_set_node(&mdio->dev, of_fwnode_handle(np));
/* Get bus level PHY reset GPIO details */
@@ -177,7 +184,7 @@ int __of_mdiobus_register(struct mii_bus *mdio, struct device_node *np,
/* Register the MDIO bus */
rc = __mdiobus_register(mdio, owner);
if (rc)
- return rc;
+ goto put_node;
/* Loop over the child nodes and register a phy_device for each phy */
for_each_available_child_of_node(np, child) {
@@ -237,6 +244,9 @@ int __of_mdiobus_register(struct mii_bus *mdio, struct device_node *np,
unregister:
of_node_put(child);
mdiobus_unregister(mdio);
+
+put_node:
+ of_node_put(np);
return rc;
}
EXPORT_SYMBOL(__of_mdiobus_register);