net/bnxt: fix flow creation

If flow create fails due to not enough filter resources,
driver does not populate the rte_flow_error using
rte_flow_error_set().

Since "rte_errno" could have garbage value and is not reliable,
it could cause a segfault in the stack in port_flow_complain().

Fix it to set rte_flow_error using rte_flow_error_set()
when flow create fails due to not enough filter resources.

Fixes: 5c1171c97216 ("net/bnxt: refactor filter/flow")
Cc: stable@dpdk.org
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>

diff --git a/drivers/net/bnxt/bnxt_flow.c b/drivers/net/bnxt/bnxt_flow.c
index cde1fa4..5564c53 100644 (file)
--- a/drivers/net/bnxt/bnxt_flow.c
+++ b/drivers/net/bnxt/bnxt_flow.c
@@ -1702,7 +1702,9 @@ bnxt_flow_create(struct rte_eth_dev *dev,
 
        filter = bnxt_get_unused_filter(bp);
        if (filter == NULL) {
-               PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
+               rte_flow_error_set(error, ENOSPC,
+                                  RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+                                  "Not enough resources for a new flow");
                goto free_flow;
        }