net/hns3: fix error code in xstats

The ethdev API has processed the failure to obtain
xstats statistics. Therefore, driver should return
an error code instead of 0 in 'hns3_dev_xstats_get'
API.

Fixes: 8839c5e202f3 ("net/hns3: support device stats")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>

diff --git a/drivers/net/hns3/hns3_stats.c b/drivers/net/hns3/hns3_stats.c
index 1597af3..42ec9b8 100644 (file)
--- a/drivers/net/hns3/hns3_stats.c
+++ b/drivers/net/hns3/hns3_stats.c
@@ -739,9 +739,9 @@ hns3_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
        if (!hns->is_vf) {
                /* Update Mac stats */
                ret = hns3_query_update_mac_stats(dev);
-               if (ret) {
+               if (ret < 0) {
                        hns3_err(hw, "Update Mac stats fail : %d", ret);
-                       return 0;
+                       return ret;
                }
 
                /* Get MAC stats from hw->hw_xstats.mac_stats struct */