Commit e93a766d authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Jakub Kicinski
Browse files

net: broadcom: bcm4908_enet: handle -EPROBE_DEFER when getting MAC 



Reading MAC from OF may return -EPROBE_DEFER if underlaying NVMEM device
isn't ready yet. In such case pass that error code up and "wait" to be
probed later.

Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20220915133013.2243-1-zajec5@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent caddb4e0

drivers/net/ethernet/broadcom/bcm4908_enet.c

+9 −4
Original line number Diff line number Diff line
@@ -716,6 +716,8 @@ static int bcm4908_enet_probe(struct platform_device *pdev) 


	SET_NETDEV_DEV(netdev, &pdev->dev);

	err = of_get_ethdev_address(dev->of_node, netdev);

	if (err == -EPROBE_DEFER)

		goto err_dma_free;

	if (err)

		eth_hw_addr_random(netdev);

	netdev->netdev_ops = &bcm4908_enet_netdev_ops;
@@ -726,14 +728,17 @@ static int bcm4908_enet_probe(struct platform_device *pdev) 
	netif_napi_add(netdev, &enet->rx_ring.napi, bcm4908_enet_poll_rx, NAPI_POLL_WEIGHT);



	err = register_netdev(netdev);

	if (err) {

		bcm4908_enet_dma_free(enet);

		return err;

	}

	if (err)

		goto err_dma_free;



	platform_set_drvdata(pdev, enet);



	return 0;



err_dma_free:

	bcm4908_enet_dma_free(enet);



	return err;

}



static int bcm4908_enet_remove(struct platform_device *pdev)