net/mlx5e: Fix error flow in representor failing to add vport rx rule

[ Upstream commit 0a6b069cc60d68d33b4f6e7dd7f1adc3ec749766 ]

On representor init rx error flow the flow steering pointer is being
released so mlx5e_attach_netdev() doesn't have a valid fs pointer
in its error flow. Make sure the pointer is nullified when released
and add a check in mlx5e_fs_cleanup() to verify fs is not null
as representor cleanup callback would be called anyway.

Fixes: af8bbf730068 ("net/mlx5e: Convert mlx5e_flow_steering member of mlx5e_priv to pointer")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
index 7cd36f4..edbe22d 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
@@ -1471,6 +1471,8 @@ err:
 
 void mlx5e_fs_cleanup(struct mlx5e_flow_steering *fs)
 {
+       if (!fs)
+               return;
        mlx5e_fs_ethtool_free(fs);
        mlx5e_fs_tc_free(fs);
        mlx5e_fs_vlan_free(fs);

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 5e01de4..94d010e 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5201,6 +5201,7 @@ static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
        mlx5e_ktls_cleanup(priv);
        mlx5e_ipsec_cleanup(priv);
        mlx5e_fs_cleanup(priv->fs);
+       priv->fs = NULL;
 }
 
 static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 0f74413..9bd1a93 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -783,6 +783,7 @@ static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
 {
        mlx5e_fs_cleanup(priv->fs);
        mlx5e_ipsec_cleanup(priv);
+       priv->fs = NULL;
 }
 
 static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
@@ -949,6 +950,7 @@ err_close_drop_rq:
        priv->rx_res = NULL;
 err_free_fs:
        mlx5e_fs_cleanup(priv->fs);
+       priv->fs = NULL;
        return err;
 }