Subject: [net 11/13] net/mlx5e: kTLS, Use _safe() iterator in mlx5e_tls_priv_tx_list_cleanup()

From: Saeed Mahameed <[email-masked]>
Date: Mon, 22 Aug 2022 12:59:15 -0700

From: Dan Carpenter <[email-masked]>

Use the list_for_each_entry_safe() macro to prevent dereferencing "obj"
after it has been freed.

Fixes: c4dfe704f53f ("net/mlx5e: kTLS, Recycle objects of device-offloaded TLS TX connections")
Signed-off-by: Dan Carpenter <[email-masked]>
Reviewed-by: Tariq Toukan <[email-masked]>
Signed-off-by: Saeed Mahameed <[email-masked]>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
index 0aef69527226..3a1f76eac542 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
@@ -246,7 +246,7 @@ static void mlx5e_tls_priv_tx_cleanup(struct mlx5e_ktls_offload_context_tx *priv
 static void mlx5e_tls_priv_tx_list_cleanup(struct mlx5_core_dev *mdev,
 					   struct list_head *list, int size)
 {
-	struct mlx5e_ktls_offload_context_tx *obj;
+	struct mlx5e_ktls_offload_context_tx *obj, *n;
 	struct mlx5e_async_ctx *bulk_async;
 	int i;
 
@@ -255,7 +255,7 @@ static void mlx5e_tls_priv_tx_list_cleanup(struct mlx5_core_dev *mdev,
 		return;
 
 	i = 0;
-	list_for_each_entry(obj, list, list_node) {
+	list_for_each_entry_safe(obj, n, list, list_node) {
 		mlx5e_tls_priv_tx_cleanup(obj, &bulk_async[i]);
 		i++;
 	}
-- 
2.37.1