[tip:tracing/core] tracing: Only call pipe_close if pipe_close is defined

[tip-bot for Steven Rostedt <srostedt@redhat.com>]

Commit-ID:  29bf4a5e3fed3dde3eb629a0cb1762c1e9217458
Gitweb:     http://git.kernel.org/tip/29bf4a5e3fed3dde3eb629a0cb1762c1e9217458
Author:     Steven Rostedt <srostedt@redhat.com>
AuthorDate: Wed, 9 Dec 2009 12:37:43 -0500
Committer:  Steven Rostedt <rostedt@goodmis.org>
CommitDate: Wed, 9 Dec 2009 12:47:35 -0500

tracing: Only call pipe_close if pipe_close is defined

This fixes a cut and paste error that had pipe_close get called
if pipe_open was defined (not pipe_close).

Reported-by: Kosaki Motohiro <kosaki.motohiro@jp.fujitsu.com>
LKML-Reference: <20091209153204.F4CD.A69D9226@jp.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index f804b40..dc937e1 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2899,7 +2899,7 @@ static int tracing_release_pipe(struct inode *inode, struct file *file)
 		cpumask_clear_cpu(iter->cpu_file, tracing_reader_cpumask);
 
 
-	if (iter->trace->pipe_open)
+	if (iter->trace->pipe_close)
 		iter->trace->pipe_close(iter);
 
 	mutex_unlock(&trace_types_lock);