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ftrace: Fix uninitialized variable in match_records()

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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'.

Link: http://lkml.kernel.org/r/20170712073556.h6tkpjcdzjaozozs@mwanda

Cc: stable@vger.kernel.org
Fixes: f0a3b154bd ("ftrace: Clarify code for mod command")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Dan Carpenter 2017-07-12 10:35:57 +03:00 committed by Steven Rostedt (VMware)
parent 44925dfff0
commit 2e028c4fe1
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/ftrace.c
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@ -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,