perf tools: Use zfree to help detect use after free bugs

Several areas already used this technique, so do some audit to
consistently use it elsewhere.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9sbere0kkplwe45ak6rk4a1f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 20f3a9c97bd8..a4a60b7887ee 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -800,10 +800,10 @@ static void free_cpu_topo(struct cpu_topo *tp)
 		return;
 
 	for (i = 0 ; i < tp->core_sib; i++)
-		free(tp->core_siblings[i]);
+		zfree(&tp->core_siblings[i]);
 
 	for (i = 0 ; i < tp->thread_sib; i++)
-		free(tp->thread_siblings[i]);
+		zfree(&tp->thread_siblings[i]);
 
 	free(tp);
 }
@@ -1232,8 +1232,8 @@ static void free_event_desc(struct perf_evsel *events)
 		return;
 
 	for (evsel = events; evsel->attr.size; evsel++) {
-		free(evsel->name);
-		free(evsel->id);
+		zfree(&evsel->name);
+		zfree(&evsel->id);
 	}
 
 	free(events);
@@ -2105,7 +2105,7 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
 	ret = 0;
 out_free:
 	for (i = 0; i < nr_groups; i++)
-		free(desc[i].name);
+		zfree(&desc[i].name);
 	free(desc);
 
 	return ret;