net/avf: fix unchecked return in link update

[dpdk.git] / drivers / net / avf / avf_ethdev.c

diff --git a/drivers/net/avf/avf_ethdev.c b/drivers/net/avf/avf_ethdev.c
index b1be7f4e0714b2ec968a9cc51410ff3459e97077..3f210b2fccb9e280c5261106e90b2cf800a3541e 100644 (file)
--- a/drivers/net/avf/avf_ethdev.c
+++ b/drivers/net/avf/avf_ethdev.c
@@ -611,9 +611,10 @@ avf_dev_link_update(struct rte_eth_dev *dev,
        new_link.link_autoneg = !!(dev->data->dev_conf.link_speeds &
                                ETH_LINK_SPEED_FIXED);
 
-       rte_atomic64_cmpset((uint64_t *)&dev->data->dev_link,
-                           *(uint64_t *)&dev->data->dev_link,
-                           *(uint64_t *)&new_link);
+       if (rte_atomic64_cmpset((uint64_t *)&dev->data->dev_link,
+                               *(uint64_t *)&dev->data->dev_link,
+                               *(uint64_t *)&new_link) == 0)
+               return -1;
 
        return 0;
 }