linux-kernel - [PATCH] TRACING: Fix a copmile warning

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Message-Id: <1310982010-13849-1-git-send-email-wangshaoyan.pt@taobao.com>
Date:	Mon, 18 Jul 2011 17:40:10 +0800
From:	stufever@...il.com
To:	linux-kernel@...r.kernel.org
Cc:	Wang Shaoyan <wangshaoyan.pt@...bao.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>
Subject: [PATCH] TRACING: Fix a copmile warning

From: Wang Shaoyan <wangshaoyan.pt@...bao.com>

It's harmless but annyoing.
  kernel/trace/trace_printk.c: In function 'module_trace_bprintk_format_notify':
  kernel/trace/trace_printk.c:52: warning: 'fmt' may be used uninitialized in this function

Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...hat.com>
Signed-off-by: Wang Shaoyan <wangshaoyan.pt@...bao.com>

---
 kernel/trace/trace_printk.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c
index 1f06468..1a5fff8 100644
--- a/kernel/trace/trace_printk.c
+++ b/kernel/trace/trace_printk.c
@@ -49,7 +49,7 @@ static
 void hold_module_trace_bprintk_format(const char **start, const char **end)
 {
 	const char **iter;
-	char *fmt;
+	char *fmt = NULL;
 
 	mutex_lock(&btrace_mutex);
 	for (iter = start; iter < end; iter++) {
-- 
1.7.4.1

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