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net: hns3: add error handler for hns3_nic_init_vector_data()

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When hns3_nic_init_vector_data() fails to map ring to vector,
it should cancel the netif_napi_add() that has been successfully
done and then exits.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Huazhong Tan 2018-10-30 21:50:43 +08:00 committed by David S. Miller
parent d48051c5b8
commit ece4bf46e9
1 changed files with 8 additions and 2 deletions
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10
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -2821,7 +2821,7 @@ static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
struct hnae3_handle *h = priv->ae_handle;
struct hns3_enet_tqp_vector *tqp_vector;
int ret = 0;
u16 i;
int i;
hns3_nic_set_cpumask(priv);
@ -2868,13 +2868,19 @@ static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain);
if (ret)
return ret;
goto map_ring_fail;
netif_napi_add(priv->netdev, &tqp_vector->napi,
hns3_nic_common_poll, NAPI_POLL_WEIGHT);
}
return 0;
map_ring_fail:
while (i--)
netif_napi_del(&priv->tqp_vector[i].napi);
return ret;
}
static int hns3_nic_alloc_vector_data(struct hns3_nic_priv *priv)