From mboxrd@z Thu Jan 1 00:00:00 1970 From: Huazhong Tan Subject: [Patch net 01/11] net: hns3: add error handler for hns3_nic_init_vector_data() Date: Sat, 27 Oct 2018 10:41:48 +0800 Message-ID: <1540608118-27449-2-git-send-email-tanhuazhong@huawei.com> References: <1540608118-27449-1-git-send-email-tanhuazhong@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , , , Huazhong Tan To: Return-path: Received: from szxga05-in.huawei.com ([45.249.212.191]:14140 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726501AbeJ0LVg (ORCPT ); Sat, 27 Oct 2018 07:21:36 -0400 In-Reply-To: <1540608118-27449-1-git-send-email-tanhuazhong@huawei.com> Sender: netdev-owner@vger.kernel.org List-ID: When hns3_nic_init_vector_data() failed for mapping ring to vector, it should cancel the netif_napi_add() that have been successfully done and then exit. Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC") Signed-off-by: Huazhong Tan --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 10 ++++++++-- 1 file 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 32f3aca8..d9066c5 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, j; 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: + for (j = i - 1; j >= 0; j--) + netif_napi_del(&priv->tqp_vector[j].napi); + + return ret; } static int hns3_nic_alloc_vector_data(struct hns3_nic_priv *priv) -- 2.7.4