From 68ccceaef0b46935e805f4c1cfd20b6af0e6fc77 Mon Sep 17 00:00:00 2001 From: Arun Ramadoss Date: Thu, 22 Sep 2022 12:40:25 +0530 Subject: [PATCH] net: dsa: microchip: lan937x: return zero if mdio node not present Currently, if the mdio node is not present in the dts file then lan937x_mdio_register return -ENODEV and entire probing process fails. To make the mdio_register generic for all ksz series switches and to maintain back-compatibility with existing dts file, return -ENODEV is replaced with return 0. Signed-off-by: Arun Ramadoss Reviewed-by: Andrew Lunn Signed-off-by: Jakub Kicinski --- drivers/net/dsa/microchip/lan937x_main.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/dsa/microchip/lan937x_main.c b/drivers/net/dsa/microchip/lan937x_main.c index c25ac439a9278..06964c8a14a4f 100644 --- a/drivers/net/dsa/microchip/lan937x_main.c +++ b/drivers/net/dsa/microchip/lan937x_main.c @@ -214,10 +214,8 @@ static int lan937x_mdio_register(struct ksz_device *dev) int ret; mdio_np = of_get_child_by_name(dev->dev->of_node, "mdio"); - if (!mdio_np) { - dev_err(ds->dev, "no MDIO bus node\n"); - return -ENODEV; - } + if (!mdio_np) + return 0; bus = devm_mdiobus_alloc(ds->dev); if (!bus) {