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authorHuazhong Tan2018-10-30 21:50:43 +0800
committerDavid S. Miller2018-10-31 12:42:38 -0700
commitece4bf46e98c9f3775a488f3932a531508d3b1a2 (patch)
treea7ddcd25fd9c6244c11a4b4e59bcbfcb8c43080b
parentd48051c5b8376038c2b287c3b1bd55b8d391d567 (diff)
net: hns3: add error handler for hns3_nic_init_vector_data()
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>
-rw-r--r--drivers/net/ethernet/hisilicon/hns3/hns3_enet.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 32f3aca814e7..0b4323b1f930 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -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)