[dpdk-stable] patch 'net/mlx5: fix invalid error check' has been queued to stable release 18.05.1

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 18.05.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/01/18. So please
shout if anyone has objections.

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From 64ba5b166d0a623d0bcc4d95733b0e9a75cc593e Mon Sep 17 00:00:00 2001
From: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
Date: Wed, 27 Jun 2018 11:20:52 +0200
Subject: [PATCH] net/mlx5: fix invalid error check

[ upstream commit f264c7980ca5b5f574c5f4c93644daf702124e4d ]

Since its return type is unsigned, if_nametoindex() returns 0 in case of
error, never -1.

Fixes: ccdcba53a3f4 ("net/mlx5: use Netlink to add/remove MAC addresses")

Signed-off-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
---
 drivers/net/mlx5/mlx5_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 90488af33..ebe5cb6e3 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -192,13 +192,13 @@ int
 mlx5_ifindex(const struct rte_eth_dev *dev)
 {
 	char ifname[IF_NAMESIZE];
-	int ret;
+	unsigned int ret;
 
 	ret = mlx5_get_ifname(dev, &ifname);
 	if (ret)
 		return ret;
 	ret = if_nametoindex(ifname);
-	if (ret == -1) {
+	if (ret == 0) {
 		rte_errno = errno;
 		return -rte_errno;
 	}
-- 
2.17.1