[PATCH v3 5/6] net/iavf: fix leak of flex metadata extraction field

[Bruce Richardson]

Function iavf_init_proto_xtr() allocates vf->proto_xtr as part of the
device init sequence, but no shutdown function frees this memory again.
Add appropriate free calls to fix this memory leak.

Fixes: 12b435bf8f2f ("net/iavf: support flex desc metadata extraction")
Cc: stable at dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
V3: add free call to close function to free memory on normal, non-error
    path.
---
 drivers/net/intel/iavf/iavf_ethdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/intel/iavf/iavf_ethdev.c b/drivers/net/intel/iavf/iavf_ethdev.c
index 1cd8c88384..d601ec3b6a 100644
--- a/drivers/net/intel/iavf/iavf_ethdev.c
+++ b/drivers/net/intel/iavf/iavf_ethdev.c
@@ -2757,6 +2757,8 @@ iavf_uninit_vf(struct rte_eth_dev *dev)
 	vf->qos_cap = NULL;
 	free(vf->qtc_map);
 	vf->qtc_map = NULL;
+	rte_free(vf->proto_xtr);
+	vf->proto_xtr = NULL;
 
 	rte_free(vf->rss_lut);
 	vf->rss_lut = NULL;
@@ -3255,6 +3257,9 @@ iavf_dev_close(struct rte_eth_dev *dev)
 		}
 	}
 
+	rte_free(vf->proto_xtr);
+	vf->proto_xtr = NULL;
+
 	rte_free(vf->vf_res);
 	vf->vsi_res = NULL;
 	vf->vf_res = NULL;
-- 
2.53.0