linux-kernel - [GIT PULL] ring-buffer: Fix memleak in ring_buffer

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Date:	Fri, 7 Aug 2009 13:36:54 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Eric Dumazet <eric.dumazet@...il.com>,
	linux kernel <linux-kernel@...r.kernel.org>, stable@...nel.org
Subject: [GIT PULL] ring-buffer: Fix memleak in ring_buffer_free()


Ingo,

Please pull the latest tip/tracing/urgent tree, which can be found at:

  git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
tip/tracing/urgent


Eric Dumazet (1):
      ring-buffer: Fix memleak in ring_buffer_free()

----
 kernel/trace/ring_buffer.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---------------------------
commit bd3f02212d6a457267e0c9c02c426151c436d9d4
Author: Eric Dumazet <eric.dumazet@...il.com>
Date:   Fri Aug 7 12:49:29 2009 +0200

    ring-buffer: Fix memleak in ring_buffer_free()
    
    I noticed oprofile memleaked in linux-2.6 current tree,
    and tracked this ring-buffer leak.
    
    Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
    LKML-Reference: <4A7C06B9.2090302@...il.com>
    Cc: stable@...nel.org
    Signed-off-by: Steven Rostedt <rostedt@...dmis.org>

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index d4d3580..a330513 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -735,6 +735,7 @@ ring_buffer_free(struct ring_buffer *buffer)
 
 	put_online_cpus();
 
+	kfree(buffer->buffers);
 	free_cpumask_var(buffer->cpumask);
 
 	kfree(buffer);
--
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