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net: hns3: set ops to null when unregister ad_dev

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[ Upstream commit 594a81b395 ]

The hclge/hclgevf and hns3 module can be unloaded independently,
when hclge/hclgevf unloaded firstly, the ops of ae_dev should
be set to NULL, otherwise it will cause an use-after-free problem.

Fixes: 38caee9d3e ("net: hns3: Add support of the HNAE3 framework")
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Weihang Li
2019-06-03 10:09:18 +08:00
committed by Greg Kroah-Hartman
parent 35407917b0
commit cac3032062
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/hisilicon/hns3/hnae3.c
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@@ -229,6 +229,7 @@ void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo)
ae_algo->ops->uninit_ae_dev(ae_dev);
hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
ae_dev->ops = NULL;
}
list_del(&ae_algo->node);
@@ -316,6 +317,7 @@ void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev)
ae_algo->ops->uninit_ae_dev(ae_dev);
hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
ae_dev->ops = NULL;
}
list_del(&ae_dev->node);