net/sfc: fix double free on encap transfer flow rule path

[dpdk.git] / drivers / net / sfc / sfc_mae.c

diff --git a/drivers/net/sfc/sfc_mae.c b/drivers/net/sfc/sfc_mae.c
index c78a376..4ddfef5 100644 (file)
--- a/drivers/net/sfc/sfc_mae.c
+++ b/drivers/net/sfc/sfc_mae.c
@@ -1607,6 +1607,9 @@ sfc_mae_rule_process_outer(struct sfc_adapter *sa,
                }
        }
 
+       /* The spec has now been tracked by the outer rule entry. */
+       ctx->match_spec_outer = NULL;
+
        /*
         * Depending on whether we reuse an existing outer rule or create a
         * new one (see above), outer rule ID is either a valid value or
@@ -1717,7 +1720,8 @@ sfc_mae_rule_encap_parse_fini(struct sfc_adapter *sa,
        if (ctx->encap_type == EFX_TUNNEL_PROTOCOL_NONE)
                return;
 
-       efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
+       if (ctx->match_spec_outer != NULL)
+               efx_mae_match_spec_fini(sa->nic, ctx->match_spec_outer);
 }
 
 int