linux-kernel - [PATCH] tracing: fix warning about usage of unitialized variable 'ret'

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Date:	Fri, 31 Aug 2012 13:27:04 +0300
From:	Pasi Savanainen <pasi.savanainen@...u.com>
To:	rostedt@...dmis.org, fweisbec@...il.com, mingo@...hat.com
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] tracing: fix warning about usage of unitialized variable 'ret'

kernel/trace/trace_events_filter.c: In function ‘ftrace_function_set_filter_cb’:
kernel/trace/trace_events_filter.c:2074:8: warning: ‘ret’ may be used
uninitialized in this function [-Wuninitialized]

Signed-off-by: Pasi Savanainen <pasi.savanainen@...u.com>
---
 kernel/trace/trace_events_filter.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 431dba8..c154797 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -2002,7 +2002,7 @@ 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, ret = -EINVAL;
 	int *reset;
 	char **re;
 
-- 
1.7.9.5

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