[PATCH][next] net/mlx5e: fix memory leak of tls

From: Colin King
Date: Tue Jun 30 2020 - 11:16:52 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

The error return path when create_singlethread_workqueue fails currently
does not kfree tls and leads to a memory leak. Fix this by kfree'ing
tls before returning -ENOMEM.

Addresses-Coverity: ("Resource leak")
Fixes: 1182f3659357 ("net/mlx5e: kTLS, Add kTLS RX HW offload support")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
index 99beb928feff..fee991f5ee7c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
@@ -232,8 +232,10 @@ int mlx5e_tls_init(struct mlx5e_priv *priv)
return -ENOMEM;

tls->rx_wq = create_singlethread_workqueue("mlx5e_tls_rx");
- if (!tls->rx_wq)
+ if (!tls->rx_wq) {
+ kfree(tls);
return -ENOMEM;
+ }

priv->tls = tls;
return 0;
--
2.27.0