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octeon_ep: ensure octep_get_link_status() successfully before octep_link_up() 

octep_get_link_status() can fail because send mbox message failed, then
octep_get_link_status() will return ret less than 0. Excute octep_link_up()
as long as ret is not equal to 0 in octep_open() now. That is not correct.

The value type of link.state is enum octep_ctrl_net_state. Positive value
represents up. Excute octep_link_up() when ret is bigger than 0.

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 15:08:47 +08:00 committed by David S. Miller
parent 298b83e180
commit 9d3ff71318
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/marvell/octeon_ep/octep_main.c
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@ -521,7 +521,7 @@ static int octep_open(struct net_device *netdev)
octep_oq_dbell_init(oct);
ret = octep_get_link_status(oct);
if (ret)
if (ret > 0)
octep_link_up(netdev);
return 0;