net: fec: put child node on error path

Also decrement the reference count of child device on error path.

Fixes: 3e782985cb3c ("net: ethernet: fec: Allow configuration of MDIO bus speed")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Link: https://lore.kernel.org/r/20210120122037.83897-1-bianpan2016@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 04f24c66cf3668113014208d8a2dedc76180f131..55c28fbc5f9eaeca7ad1dc34f2d7cef3ad753b19 100644 (file)
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2165,9 +2165,9 @@ static int fec_enet_mii_init(struct platform_device *pdev)
        fep->mii_bus->parent = &pdev->dev;
 
        err = of_mdiobus_register(fep->mii_bus, node);
-       of_node_put(node);
        if (err)
                goto err_out_free_mdiobus;
+       of_node_put(node);
 
        mii_cnt++;
 
@@ -2180,6 +2180,7 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 err_out_free_mdiobus:
        mdiobus_free(fep->mii_bus);
 err_out:
+       of_node_put(node);
        return err;
 }