perf bench: futex: Fix memory leak of perf_cpu_map__new

ASan reports memory leaks while running:

$ sudo ./perf bench futex all

The leaks are caused by perf_cpu_map__new not being freed. This patch adds the missing perf_cpu_map__put since it calls cpu_map_delete implicitly.

Fixes 9c3516d1b850 ("libperf: Add perf_cpu_map__new()/perf_cpu_map__read() functions")

Signed-off-by Sohaib Mohamed <[email protected]>

---
 tools/perf/bench/futex-lock-pi.c       | 1 +
 tools/perf/bench/futex-requeue.c       | 1 +
 tools/perf/bench/futex-wake-parallel.c | 1 +
 tools/perf/bench/futex-wake.c          | 1 +
 4 files changed, 4 insertions(+)

tools/perf/bench/futex-lock-pi.c +1 -0

index 5d1fe9c35807..137890f78e17 100644
@@ -233,6 +233,7 @@ int bench_futex_lock_pi(int argc, const char **argv)
 	print_summary();
 
 	free(worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 err:
 	usage_with_options(bench_futex_lock_pi_usage, options);

tools/perf/bench/futex-requeue.c +1 -0

index 97fe31fd3a23..f7a5ffebb940 100644
@@ -294,6 +294,7 @@ int bench_futex_requeue(int argc, const char **argv)
 	print_summary();
 
 	free(worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 err:
 	usage_with_options(bench_futex_requeue_usage, options);

tools/perf/bench/futex-wake-parallel.c +1 -0

index e970e6b9ad53..0983f40b4b40 100644
@@ -329,6 +329,7 @@ int bench_futex_wake_parallel(int argc, const char **argv)
 	print_summary();
 
 	free(blocked_worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 }
 #endif /* HAVE_PTHREAD_BARRIER */

tools/perf/bench/futex-wake.c +1 -1

index 77f058a47790..2226a475e782 100644
@@ -222,5 +222,6 @@ int bench_futex_wake(int argc, const char **argv)
 	print_summary();
 
 	free(worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 }
--

2.25.1