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, 3 insertions, 2 deletions

diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c
index 56a84f2cc46d..43262b83c541 100644
--- a/tools/perf/util/svghelper.c
+++ b/tools/perf/util/svghelper.c
@@ -21,6 +21,7 @@
 
 #include "perf.h"
 #include "svghelper.h"
+#include "util.h"
 #include "cpumap.h"
 
 static u64 first_time, last_time;
@@ -708,8 +709,8 @@ int svg_build_topology_map(char *sib_core, int sib_core_nr,
         return 0;
 
 exit:
-        free(t.sib_core);
-        free(t.sib_thr);
+        zfree(&t.sib_core);
+        zfree(&t.sib_thr);
 
         return -1;
 }