1 files changed, 3 insertions, 2 deletions

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 514e2a4b367d..90dc35ae444a 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -708,7 +708,7 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
         bool printed = false;
         struct rb_node *node;
         int i = 0;
-        int ret;
+        int ret = 0;
 
         /*
          * If have one single callchain root, don't bother printing
@@ -747,8 +747,9 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
                 root = &cnode->rb_root;
         }
 
-        return __callchain__fprintf_graph(fp, root, total_samples,
+        ret += __callchain__fprintf_graph(fp, root, total_samples,
                                           1, 1, left_margin);
+        return ret;
 }
 
 static size_t __callchain__fprintf_flat(FILE *fp,