[PATCH v2 6/9] net/iavf: fix generic flow error-path leaks

[Anatoly Burakov]

If a flow engine fails to initialize, parsers registered by earlier
engines remain allocated. Pattern matching also leaks its item array
when allocation of the match result fails.

Unwind registered parsers on flow initialization failure and free the
item array on match-result allocation failure.

Fixes: ff2d0c345c3b ("net/iavf: support generic flow API")
Cc: sta...@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
---
 drivers/net/intel/iavf/iavf_generic_flow.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/intel/iavf/iavf_generic_flow.c 
b/drivers/net/intel/iavf/iavf_generic_flow.c
index 14242e6ebb..cd4d4a012b 100644
--- a/drivers/net/intel/iavf/iavf_generic_flow.c
+++ b/drivers/net/intel/iavf/iavf_generic_flow.c
@@ -1821,17 +1821,22 @@ iavf_flow_init(struct iavf_adapter *ad)
                if (engine->init == NULL) {
                        PMD_INIT_LOG(ERR, "Invalid engine type (%d)",
                                     engine->type);
-                       return -ENOTSUP;
+                       ret = -ENOTSUP;
+                       goto err;
                }
 
                ret = engine->init(ad);
                if (ret && ret != -ENOTSUP) {
                        PMD_INIT_LOG(ERR, "Failed to initialize engine %d",
                                     engine->type);
-                       return ret;
+                       goto err;
                }
        }
        return 0;
+
+err:
+       iavf_flow_uninit(ad);
+       return ret;
 }
 
 void
@@ -2047,6 +2052,7 @@ iavf_search_pattern_match_item(const struct rte_flow_item 
pattern[],
        if (!pattern_match_item) {
                rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
                                   NULL, "Failed to allocate memory.");
+               rte_free(items);
                return NULL;
        }
 
-- 
2.52.0