1 files changed, 6 insertions, 8 deletions

diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 6c152686e837..c244cb524ef2 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -213,20 +213,19 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
         return ret;
 }
 
-static size_t __callchain__fprintf_flat(FILE *fp,
-                                        struct callchain_node *self,
+static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
                                         u64 total_samples)
 {
         struct callchain_list *chain;
         size_t ret = 0;
 
-        if (!self)
+        if (!node)
                 return 0;
 
-        ret += __callchain__fprintf_flat(fp, self->parent, total_samples);
+        ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
 
 
-        list_for_each_entry(chain, &self->val, list) {
+        list_for_each_entry(chain, &node->val, list) {
                 if (chain->ip >= PERF_CONTEXT_MAX)
                         continue;
                 if (chain->ms.sym)
@@ -239,15 +238,14 @@ static size_t __callchain__fprintf_flat(FILE *fp,
         return ret;
 }
 
-static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *self,
+static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
                                       u64 total_samples)
 {
         size_t ret = 0;
         u32 entries_printed = 0;
-        struct rb_node *rb_node;
         struct callchain_node *chain;
+        struct rb_node *rb_node = rb_first(tree);
 
-        rb_node = rb_first(self);
         while (rb_node) {
                 double percent;