[PATCH] app/crypto-perf: fix test file memory leak

[Ciara Power]

A memory leak was detected using the AddressSanitizer tool,
when running the crypto-perf application with a test vector file.

The strdup function used returns a pointer to a null-terminated byte
string, which must be freed after use. This patch frees the pointer in
an error case, and also after a successful run.

Fixes: f8be1786b1b8 ("app/crypto-perf: introduce performance test application")
Cc: sta...@dpdk.org

Signed-off-by: Ciara Power <ciara.po...@intel.com>
---
 app/test-crypto-perf/cperf_options_parsing.c     | 1 +
 app/test-crypto-perf/cperf_test_vector_parsing.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/app/test-crypto-perf/cperf_options_parsing.c 
b/app/test-crypto-perf/cperf_options_parsing.c
index 8c9f632590..26136a52ae 100644
--- a/app/test-crypto-perf/cperf_options_parsing.c
+++ b/app/test-crypto-perf/cperf_options_parsing.c
@@ -519,6 +519,7 @@ parse_test_file(struct cperf_options *opts,
        if (access(opts->test_file, F_OK) != -1)
                return 0;
        RTE_LOG(ERR, USER1, "Test vector file doesn't exist\n");
+       free(opts->test_file);
 
        return -1;
 }
diff --git a/app/test-crypto-perf/cperf_test_vector_parsing.c 
b/app/test-crypto-perf/cperf_test_vector_parsing.c
index 98e46c3381..737d61d4af 100644
--- a/app/test-crypto-perf/cperf_test_vector_parsing.c
+++ b/app/test-crypto-perf/cperf_test_vector_parsing.c
@@ -30,6 +30,7 @@ free_test_vector(struct cperf_test_vector *vector, struct 
cperf_options *opts)
                rte_free(vector->cipher_key.data);
                rte_free(vector->auth_key.data);
                rte_free(vector->ciphertext.data);
+               free(opts->test_file);
        }
 
        rte_free(vector);
-- 
2.25.1