[PATCH 5.11 202/254] net/mlx5e: Fix error path for ethtool set-priv-flag

[Greg Kroah-Hartman]

From: Aya Levin <a...@nvidia.com>

[ Upstream commit 4eacfe72e3e037e3fc019113df32c39a705148c2 ]

Expose error value when failing to comply to command:
$ ethtool --set-priv-flags eth2 rx_cqe_compress [on/off]

Fixes: be7e87f92b58 ("net/mlx5e: Fail safe cqe compressing/moderation mode 
setting")
Signed-off-by: Aya Levin <a...@nvidia.com>
Reviewed-by: Tariq Toukan <tar...@nvidia.com>
Signed-off-by: Saeed Mahameed <sae...@nvidia.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index fdf5afc8b058..c9d01e705ab2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1876,6 +1876,7 @@ static int set_pflag_rx_cqe_compress(struct net_device 
*netdev,
 {
        struct mlx5e_priv *priv = netdev_priv(netdev);
        struct mlx5_core_dev *mdev = priv->mdev;
+       int err;
 
        if (!MLX5_CAP_GEN(mdev, cqe_compression))
                return -EOPNOTSUPP;
@@ -1885,7 +1886,10 @@ static int set_pflag_rx_cqe_compress(struct net_device 
*netdev,
                return -EINVAL;
        }
 
-       mlx5e_modify_rx_cqe_compression_locked(priv, enable);
+       err = mlx5e_modify_rx_cqe_compression_locked(priv, enable);
+       if (err)
+               return err;
+
        priv->channels.params.rx_cqe_compress_def = enable;
 
        return 0;
-- 
2.30.1