[dpdk-dev] [PATCH] net/mlx5: add missing return value check

[Ali Alnubani]

Fixes: d86406b965df ("net/mlx5: support new representor naming format")
Cc: dek...@mellanox.com

Signed-off-by: Ali Alnubani <alia...@mellanox.com>
---
 drivers/net/mlx5/mlx5_ethdev.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 84d761c8e..1fd988998 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -1365,6 +1365,7 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct 
mlx5_switch_info *info)
        bool port_name_set = false;
        bool port_switch_id_set = false;
        char c;
+       int ret;
 
        if (!if_indextoname(ifindex, ifname)) {
                rte_errno = errno;
@@ -1378,9 +1379,10 @@ mlx5_sysfs_switch_info(unsigned int ifindex, struct 
mlx5_switch_info *info)
 
        file = fopen(phys_port_name, "rb");
        if (file != NULL) {
-               fscanf(file, "%s", port_name);
+               ret = fscanf(file, "%s", port_name);
                fclose(file);
-               port_name_set = mlx5_translate_port_name(port_name, &data);
+               if (ret == 1)
+                       port_name_set = mlx5_translate_port_name(port_name, 
&data);
        }
        file = fopen(phys_switch_id, "rb");
        if (file == NULL) {
-- 
2.19.2