[PATCH bpf-next 5/6] selftests/bpf: fix memory leak in test selector

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Free test selector substrings, which were strdup()'ed.

Fixes: b65053cd94f4 ("selftests/bpf: Add whitelist/blacklist of test names to test_progs")
Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
---
 tools/testing/selftests/bpf/test_progs.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index b521e0a512b6..86d0020c9eec 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -420,6 +420,18 @@ static int libbpf_print_fn(enum libbpf_print_level level,
 	return 0;
 }
 
+static void free_str_set(const struct str_set *set)
+{
+	int i;
+
+	if (!set)
+		return;
+
+	for (i = 0; i < set->cnt; i++)
+		free((void *)set->strs[i]);
+	free(set->strs);
+}
+
 static int parse_str_list(const char *s, struct str_set *set)
 {
 	char *input, *state = NULL, *next, **tmp, **strs = NULL;
@@ -756,11 +768,11 @@ int main(int argc, char **argv)
 	fprintf(stdout, "Summary: %d/%d PASSED, %d SKIPPED, %d FAILED\n",
 		env.succ_cnt, env.sub_succ_cnt, env.skip_cnt, env.fail_cnt);
 
-	free(env.test_selector.blacklist.strs);
-	free(env.test_selector.whitelist.strs);
+	free_str_set(&env.test_selector.blacklist);
+	free_str_set(&env.test_selector.whitelist);
 	free(env.test_selector.num_set);
-	free(env.subtest_selector.blacklist.strs);
-	free(env.subtest_selector.whitelist.strs);
+	free_str_set(&env.subtest_selector.blacklist);
+	free_str_set(&env.subtest_selector.whitelist);
 	free(env.subtest_selector.num_set);
 
 	return env.fail_cnt ? EXIT_FAILURE : EXIT_SUCCESS;
-- 
2.24.1





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