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Message-ID: <da822315-02b7-4f5b-9c86-0d5176c5069d@stanley.mountain>
Date: Sat, 14 Sep 2024 12:58:26 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Yevgeny Kliteynik <kliteyn@...dia.com>
Cc: Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>,
Tariq Toukan <tariqt@...dia.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Itamar Gozlan <igozlan@...dia.com>, netdev@...r.kernel.org,
linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org
Subject: [PATCH net-next] net/mlx5: HWS, check the correct variable in
hws_send_ring_alloc_sq()
There is a copy and paste bug so this code checks "sq->dep_wqe" where
"sq->wr_priv" was intended. It could result in a NULL pointer
dereference.
Fixes: 2ca62599aa0b ("net/mlx5: HWS, added send engine and context handling")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
.../net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_send.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_send.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_send.c
index fb97a15c041a..a1adbb48735c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_send.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_send.c
@@ -584,7 +584,7 @@ static int hws_send_ring_alloc_sq(struct mlx5_core_dev *mdev,
}
sq->wr_priv = kzalloc(sizeof(*sq->wr_priv) * buf_sz, GFP_KERNEL);
- if (!sq->dep_wqe) {
+ if (!sq->wr_priv) {
err = -ENOMEM;
goto free_dep_wqe;
}
--
2.45.2
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