[dpdk-stable] [PATCH 55/67] net/mlx5: fix probe return value polarity

[Yongseok Koh <yskoh@mellanox.com>]

From: Shahaf Shuler <shahafs@mellanox.com>

[ backported from upstream commit 012ad9944dfc470c17d8f555c89dadd5473e25d4 ]

mlx5 prefixed function returns a negative errno value.
the error handler on mlx5_pci_probe is doing the same.

Fixes: a6d83b6a9209 ("net/mlx5: standardize on negative errno values")

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
---
 drivers/net/mlx5/mlx5.c | 30 +++++++++++++++++++++---------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index ac43d80aa..bd21454cb 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -779,8 +779,9 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 		cqe_comp = 0;
 	else
 		cqe_comp = 1;
-	if (ibv_query_device_ex(attr_ctx, NULL, &device_attr)) {
-		err = errno;
+	err = ibv_query_device_ex(attr_ctx, NULL, &device_attr);
+	if (err) {
+		DEBUG("ibv_query_device_ex() failed");
 		goto error;
 	}
 	DRV_LOG(INFO, "%u port(s) detected",
@@ -823,16 +824,22 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 			eth_dev->device = &pci_dev->device;
 			eth_dev->dev_ops = &mlx5_dev_sec_ops;
 			err = mlx5_uar_init_secondary(eth_dev);
-			if (err)
+			if (err) {
+				err = rte_errno;
 				goto error;
+			}
 			/* Receive command fd from primary process */
 			err = mlx5_socket_connect(eth_dev);
-			if (err < 0)
+			if (err < 0) {
+				err = rte_errno;
 				goto error;
+			}
 			/* Remap UAR for Tx queues. */
 			err = mlx5_tx_uar_remap(eth_dev, err);
-			if (err)
+			if (err) {
+				err = rte_errno;
 				goto error;
+			}
 			/*
 			 * Ethdev pointer is still required as input since
 			 * the primary device is not accessible from the
@@ -901,12 +908,13 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 		if (err) {
 			DRV_LOG(ERR, "failed to process device arguments: %s",
 				strerror(err));
+			err = rte_errno;
 			goto port_error;
 		}
 		mlx5_args_assign(priv, &args);
-		if (ibv_query_device_ex(ctx, NULL, &device_attr_ex)) {
+		err = ibv_query_device_ex(ctx, NULL, &device_attr_ex);
+		if (err) {
 			DRV_LOG(ERR, "ibv_query_device_ex() failed");
-			err = errno;
 			goto port_error;
 		}
 		priv->hw_csum =
@@ -1006,8 +1014,10 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 		rte_eth_copy_pci_info(eth_dev, pci_dev);
 		eth_dev->device->driver = &mlx5_driver.driver;
 		err = mlx5_uar_init_primary(eth_dev);
-		if (err)
+		if (err) {
+			err = rte_errno;
 			goto port_error;
+		}
 		/* Configure the first MAC address by default. */
 		if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
 			DRV_LOG(ERR,
@@ -1037,8 +1047,10 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 #endif
 		/* Get actual MTU if possible. */
 		err = mlx5_get_mtu(eth_dev, &priv->mtu);
-		if (err)
+		if (err) {
+			err = rte_errno;
 			goto port_error;
+		}
 		DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
 			priv->mtu);
 		/*
-- 
2.11.0