net/mlx5: fix invalid network interface index

[dpdk.git] / drivers / net / mlx5 / mlx5_ethdev.c

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 4a24f80..34c5b95 100644 (file)
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -245,24 +245,20 @@ mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE])
  *   Pointer to Ethernet device.
  *
  * @return
- *   Interface index on success, a negative errno value otherwise and
- *   rte_errno is set.
+ *   Nonzero interface index on success, zero otherwise and rte_errno is set.
  */
-int
+unsigned int
 mlx5_ifindex(const struct rte_eth_dev *dev)
 {
        char ifname[IF_NAMESIZE];
-       unsigned int ret;
+       unsigned int ifindex;
 
-       ret = mlx5_get_ifname(dev, &ifname);
-       if (ret)
-               return ret;
-       ret = if_nametoindex(ifname);
-       if (ret == 0) {
+       if (mlx5_get_ifname(dev, &ifname))
+               return 0;
+       ifindex = if_nametoindex(ifname);
+       if (!ifindex)
                rte_errno = errno;
-               return -rte_errno;
-       }
-       return ret;
+       return ifindex;
 }
 
 /**