[dpdk-stable] [PATCH v2 03/12] net/mlx5: fix inconsistent return value in flow director

[Nelio Laranjeiro]

From: Yaacov Hazan <yaacovh at mellanox.com>

[ upstream commit c502d05197e35dc2840fdf5892f6310c8cc4b0fd ]

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 at mellanox.com>
---
 drivers/net/mlx5/mlx5_fdir.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_fdir.c b/drivers/net/mlx5/mlx5_fdir.c
index 070edde..0372936 100644
--- 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;
 }
-- 
2.1.4