[PATCHv2 net-next] net: gianfar: fix NVMEM mac address

From: Rosen Penev
Date: Tue Sep 10 2024 - 18:09:31 EST


If nvmem loads after the ethernet driver, mac address assignments will
not take effect. of_get_ethdev_address returns EPROBE_DEFER in such a
case so we need to handle that to avoid eth_hw_addr_random.

Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
v2: use goto instead of return
---
drivers/net/ethernet/freescale/gianfar.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 2baef59f741d..ecb1703ea150 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -754,6 +754,8 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
priv->device_flags |= FSL_GIANFAR_DEV_HAS_BUF_STASHING;

err = of_get_ethdev_address(np, dev);
+ if (err == -EPROBE_DEFER)
+ goto err_grp_init;
if (err) {
eth_hw_addr_random(dev);
dev_info(&ofdev->dev, "Using random MAC address: %pM\n", dev->dev_addr);
--
2.46.0