From cac3032062e53fd83fbb7af4a8e7e673c75ec375 Mon Sep 17 00:00:00 2001 From: Weihang Li Date: Mon, 3 Jun 2019 10:09:18 +0800 Subject: [PATCH] net: hns3: set ops to null when unregister ad_dev [ Upstream commit 594a81b39525f0a17e92c2e0b167ae1400650380 ] 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: 38caee9d3ee8 ("net: hns3: Add support of the HNAE3 framework") Signed-off-by: Weihang Li Signed-off-by: Peng Li Signed-off-by: Huazhong Tan Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/hisilicon/hns3/hnae3.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c index fff5be8..0594a6c 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c @@ -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); -- 2.7.4