From ed6f1c996bfe4b6e520cf7a74b51cd6988d84420 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 10 Apr 2013 09:18:12 +0900
Subject: tracing: Check return value of tracing_init_dentry()

Check return value and bail out if it's NULL.

Link: http://lkml.kernel.org/r/1365553093-10180-2-git-send-email-namhyung@kernel.org

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'kernel/trace/trace.c')

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 07860b995752..72970793b40a 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5953,6 +5953,8 @@ static __init int tracer_init_debugfs(void)
 	trace_access_lock_init();
 
 	d_tracer = tracing_init_dentry();
+	if (!d_tracer)
+		return 0;
 
 	init_tracer_debugfs(&global_trace, d_tracer);
 
-- 
cgit