ring: fix memory freeing on error

Fix minor memory free issue in error clean-up.

Reported-by Coverity (CID 119258)

Fixes: 651c505af862 ("ring: enhance device setup from rings")
Signed-off-by: John McNamara <john.mcnamara@intel.com>

diff --git a/drivers/net/ring/rte_eth_ring.c b/drivers/net/ring/rte_eth_ring.c
index cc60008c9165bbab493b9760a178cea4a6cacb22..9a31bcea1fd4a0f54ff4759e7bdb42a3290cf03f 100644 (file)
--- a/drivers/net/ring/rte_eth_ring.c
+++ b/drivers/net/ring/rte_eth_ring.c
@@ -363,8 +363,10 @@ rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[],
        return data->port_id;
 
 error:
-       rte_free(data->rx_queues);
-       rte_free(data->tx_queues);
+       if (data) {
+               rte_free(data->rx_queues);
+               rte_free(data->tx_queues);
+       }
        rte_free(data);
        rte_free(internals);