[PATCH 2/2] ftrace: silence uninitialized variable warning

From: Dan Carpenter
Date: Wed Jul 12 2017 - 03:36:18 EST

My static checker complains that if "func" is NULL then "clear_filter"
is uninitialized. This seems like it could be true, although it's
possible something subtle is happening that I haven't seen.

kernel/trace/ftrace.c:3844 match_records()
error: uninitialized symbol 'clear_filter'.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
It does occur to me that I could initialize it to 1 instead of 0 but my
guess is that zero is intended. Please review this one carefully.

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 2a3c45743f54..5e658da91912 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3816,7 +3816,7 @@ match_records(struct ftrace_hash *hash, char *func, int len, char *mod)
int exclude_mod = 0;
int found = 0;
int ret;
- int clear_filter;
+ int clear_filter = 0;

if (func) {
func_g.type = filter_parse_regex(func, len, &func_g.search,