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octeon_ep: ensure get mac address successfully before eth_hw_addr_set()

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octep_get_mac_addr() can fail because send mbox message failed. If this
happens, octep_dev->mac_addr will be zero. It should not continue to
initialize. Add exception handling for octep_get_mac_addr() to fix it.

Fixes: 862cd659a6 ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ziyang Xuan 2022-11-11 15:09:35 +08:00 committed by David S. Miller
parent e4041be97b
commit 848ffce2f0
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/marvell/octeon_ep/octep_main.c
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@ -1072,7 +1072,11 @@ static int octep_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->max_mtu = OCTEP_MAX_MTU;
netdev->mtu = OCTEP_DEFAULT_MTU;
octep_get_mac_addr(octep_dev, octep_dev->mac_addr);
err = octep_get_mac_addr(octep_dev, octep_dev->mac_addr);
if (err) {
dev_err(&pdev->dev, "Failed to get mac address\n");
goto register_dev_err;
}
eth_hw_addr_set(netdev, octep_dev->mac_addr);
err = register_netdev(netdev);