net/mlx5: fix inconsistent return value in flow director

The return value in DPDK is negative errno on failure.
Since internal functions in mlx driver return positive
values need to negate this value when it returned to
dpdk layer.

Fixes: 76f5c99 ("mlx5: support flow director")
Signed-off-by: Yaacov Hazan <yaacovh@mellanox.com>

diff --git a/drivers/net/mlx5/mlx5_fdir.c b/drivers/net/mlx5/mlx5_fdir.c
index 73eb00ec50b825476c5bc5eee769f5cda05c887f..820757365369c8ae32a60d621febed964cdecbd1 100644 (file)
--- a/drivers/net/mlx5/mlx5_fdir.c
+++ b/drivers/net/mlx5/mlx5_fdir.c
@@ -955,7 +955,7 @@ mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
                     enum rte_filter_op filter_op,
                     void *arg)
 {
-       int ret = -EINVAL;
+       int ret = EINVAL;
        struct priv *priv = dev->data->dev_private;
 
        switch (filter_type) {
@@ -970,5 +970,5 @@ mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
                break;
        }
 
-       return ret;
+       return -ret;
 }