[PATCH 1/5] perf test demangle: Fail when demangling fails

[Michal Pluta <michalpl2003@gmail.com>]

The Rust and Java demangle tests only log a NULL result from
dso__demangle_sym() and carry on, so a symbol that fails to demangle
doesn't fail the test.  Set TEST_FAIL.

Assisted-by: LLM
Signed-off-by: Michal Pluta <michalpl2003@gmail.com>
---
 tools/perf/tests/demangle-java-test.c    | 1 +
 tools/perf/tests/demangle-rust-v0-test.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/perf/tests/demangle-java-test.c b/tools/perf/tests/demangle-java-test.c
index 0fb3e5a4a0ed..a8eb0f4effad 100644
--- a/tools/perf/tests/demangle-java-test.c
+++ b/tools/perf/tests/demangle-java-test.c
@@ -33,6 +33,7 @@ static int test__demangle_java(struct test_suite *test __maybe_unused, int subte
 		if (!buf) {
 			pr_debug("FAILED to demangle: \"%s\"\n \"%s\"\n", test_cases[i].mangled,
 				 test_cases[i].demangled);
+			ret = TEST_FAIL;
 			continue;
 		}
 		if (strcmp(buf, test_cases[i].demangled)) {
diff --git a/tools/perf/tests/demangle-rust-v0-test.c b/tools/perf/tests/demangle-rust-v0-test.c
index 904f966c65d7..ee4ddb61174b 100644
--- a/tools/perf/tests/demangle-rust-v0-test.c
+++ b/tools/perf/tests/demangle-rust-v0-test.c
@@ -58,6 +58,7 @@ static int test__demangle_rust(struct test_suite *test __maybe_unused, int subte
 		if (!buf) {
 			pr_debug("FAILED to demangle: \"%s\"\n \"%s\"\n", test_cases[i].mangled,
 				 test_cases[i].demangled);
+			ret = TEST_FAIL;
 			continue;
 		}
 		if (strcmp(buf, test_cases[i].demangled)) {
-- 
2.43.0