net/mlx5e: Skip un-needed tx recover if interface state is down

Skip recover operation if interface is in down state as TX objects are
not open. This fixes a bug were the recover flow re-opened TX objects
which were not opened before, leading to a possible memory leak at
driver unload.

Fixes: f9154a205e65 ("net/mlx5e: Add tx reporter support")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
index 9d38e62cdf248a2f624b12227133f8132f7591bd..a85843e4e925d3258f5ba59db4e84eac847e76a2 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -186,12 +186,18 @@ static int mlx5e_tx_reporter_recover_from_ctx(struct mlx5e_tx_err_ctx *err_ctx)
 
 static int mlx5e_tx_reporter_recover_all(struct mlx5e_priv *priv)
 {
-       int err;
+       int err = 0;
 
        rtnl_lock();
        mutex_lock(&priv->state_lock);
+
+       if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
+               goto out;
+
        mlx5e_close_locked(priv->netdev);
        err = mlx5e_open_locked(priv->netdev);
+
+out:
        mutex_unlock(&priv->state_lock);
        rtnl_unlock();