perf hists: Return correct number of characters printed in callchain

Include the omitted number of characters printed for the first entry.

Not that it really matters because nobody seem to care about the number
of printed characters for now. But just in case.

Signed-off-by: Frederic Weisbecker <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 514e2a4b367d6d53838d9ac726a063b0ba3bf5e8..90dc35ae444adee31fffbb2049382adefc7de7c8 100644 (file)
--- 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,