| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.20 204/352] net: hns3: fix error handling int the hns3_get_vector_ring_chain | Date | Mon, 11 Feb 2019 15:17:11 +0100 |
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4.20-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit cda69d244585bc4497d3bb878c22fe2b6ad647c1 ]
When hns3_get_vector_ring_chain() failed in the hns3_nic_init_vector_data(), it should do the error handling instead of return directly.
Also, cur_chain should be freed instead of chain and head->next should be set to NULL in error handling of hns3_get_vector_ring_chain.
This patch fixes them.
Fixes: 73b907a083b8 ("net: hns3: bugfix for buffer not free problem during resetting") Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 20fcf0d1c2ce..4aea3f57586e 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2783,9 +2783,10 @@ err_free_chain: cur_chain = head->next; while (cur_chain) { chain = cur_chain->next; - devm_kfree(&pdev->dev, chain); + devm_kfree(&pdev->dev, cur_chain); cur_chain = chain; } + head->next = NULL; return -ENOMEM; } @@ -2876,7 +2877,7 @@ static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv) ret = hns3_get_vector_ring_chain(tqp_vector, &vector_ring_chain); if (ret) - return ret; + goto map_ring_fail; ret = h->ae_algo->ops->map_ring_to_vector(h, tqp_vector->vector_irq, &vector_ring_chain); -- 2.19.1
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