From e16228069083a2f6b94383ac5739aea7a0f38ce4 Mon Sep 17 00:00:00 2001
From: Li Zefan <lizf@cn.fujitsu.com>
Date: Wed, 27 May 2009 11:04:48 +0800
Subject: [PATCH] tracing/stat: remember to free root node

When closing a trace_stat file, we destroy the rbtree constructed during
file open, but there is memory leak that the root node is not freed.

[ Impact: fix memory leak when closing a trace_stat file ]

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
 kernel/trace/trace_stat.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c
index 5816d1aebcc9..8030ec98dbad 100644
--- a/kernel/trace/trace_stat.c
+++ b/kernel/trace/trace_stat.c
@@ -60,8 +60,8 @@ static struct rb_node *release_next(struct rb_node *node)
 		return node->rb_right;
 	else {
 		if (!parent)
-			return NULL;
-		if (parent->rb_left == node)
+			;
+		else if (parent->rb_left == node)
 			parent->rb_left = NULL;
 		else
 			parent->rb_right = NULL;
-- 
2.30.2