linux-kernel - [PATCH v6 6/6] tracing: Fix maybe-uninitialized warning in ftrace_function_set

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Date:	Thu, 11 Oct 2012 16:27:56 -0700
From:	David Sharp <dhsharp@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	David Sharp <dhsharp@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH v6 6/6] tracing: Fix maybe-uninitialized warning in ftrace_function_set_regexp

Compiler warning:

kernel/trace/trace_events_filter.c: In function 'ftrace_function_set_filter_cb':
kernel/trace/trace_events_filter.c:2074:8: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]

Signed-off-by: David Sharp <dhsharp@...gle.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
---
 kernel/trace/trace_events_filter.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 431dba8..ef36953 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -2002,9 +2002,10 @@ static int ftrace_function_set_regexp(struct ftrace_ops *ops, int filter,
 static int __ftrace_function_set_filter(int filter, char *buf, int len,
 					struct function_filter_data *data)
 {
-	int i, re_cnt, ret;
+	int i, re_cnt;
 	int *reset;
 	char **re;
+	int ret = 0;
 
 	reset = filter ? &data->first_filter : &data->first_notrace;
 
-- 
1.7.7.3

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