net/iavf: fix memory leak on security context error

[ upstream commit 8758ad5f8633ce4197271d41ece0cc7f799d3d6e ]

In iavf_security_ctx_create() allocated memory for the
'security_ctx', we should free it when memory malloc for
the 'iavf_security_ctx' fails, otherwise it will lead to
memory leak.

Fixes: 6bc987e ("net/iavf: support IPsec inline crypto")

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/net/iavf/iavf_ipsec_crypto.c

@@ -1497,8 +1497,11 @@ iavf_security_ctx_create(struct iavf_adapter *adapter)
 	if (adapter->security_ctx == NULL) {
 		adapter->security_ctx = rte_malloc("iavf_security_ctx",
 				sizeof(struct iavf_security_ctx), 0);
-		if (adapter->security_ctx == NULL)
+		if (adapter->security_ctx == NULL) {
+			rte_free(adapter->vf.eth_dev->security_ctx);
+			adapter->vf.eth_dev->security_ctx = NULL;
 			return -ENOMEM;
+		}
 	}
 
 	return 0;