[PATCH] net/bonding: fix iavf bond device query stats

[Kaiwen Deng <kaiwenx.deng@intel.com>]

If the rte_eth_stats_get function does not work properly,
the update function of the slave device does not work
properly When device is bonded as BONDING_MODE_TLB mode.

This commit adds handling for functions that do not get
stats properly.

Fixes: 7c76a747e68c ("bond: add mode 5")
Cc: stable@dpdk.org

Signed-off-by: Kaiwen Deng <kaiwenx.deng@intel.com>
---
 drivers/net/bonding/rte_eth_bond_pmd.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index f0c4f7d26b..edce621496 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -894,6 +894,7 @@ bond_ethdev_update_tlb_slave_cb(void *arg)
 	uint8_t update_stats = 0;
 	uint16_t slave_id;
 	uint16_t i;
+	int ret;
 
 	internals->slave_update_idx++;
 
@@ -903,7 +904,10 @@ bond_ethdev_update_tlb_slave_cb(void *arg)
 
 	for (i = 0; i < internals->active_slave_count; i++) {
 		slave_id = internals->active_slaves[i];
-		rte_eth_stats_get(slave_id, &slave_stats);
+		ret = rte_eth_stats_get(slave_id, &slave_stats);
+		if (ret)
+			goto OUT;
+
 		tx_bytes = slave_stats.obytes - tlb_last_obytets[slave_id];
 		bandwidth_left(slave_id, tx_bytes,
 				internals->slave_update_idx, &bwg_array[i]);
@@ -922,6 +926,7 @@ bond_ethdev_update_tlb_slave_cb(void *arg)
 	for (i = 0; i < slave_count; i++)
 		internals->tlb_slaves_order[i] = bwg_array[i].slave;
 
+OUT:
 	rte_eal_alarm_set(REORDER_PERIOD_MS * 1000, bond_ethdev_update_tlb_slave_cb,
 			(struct bond_dev_private *)internals);
 }
-- 
2.34.1