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authorDan Carpenter2017-07-12 02:35:57 -0500
committerGreg Kroah-Hartman2017-07-27 17:06:07 -0500
commit75202d3ffca4dddfb2be9b6f8071c605335ad424 (patch)
tree68610f0179f602499726d4c4fd34d21fe84236de /kernel
parent3457c0459496d028a4f47167a8b8871671abdeda (diff)
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ftrace: Fix uninitialized variable in match_records()
commit 2e028c4fe12907f226b8221815f16c2486ad3aa7 upstream. 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 Fixes: f0a3b154bd7 ("ftrace: Clarify code for mod command") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/ftrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 34b2a0d5cf1a..eba904bae48c 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3535,7 +3535,7 @@ match_records(struct ftrace_hash *hash, char *func, int len, char *mod)
3535 int exclude_mod = 0; 3535 int exclude_mod = 0;
3536 int found = 0; 3536 int found = 0;
3537 int ret; 3537 int ret;
3538 int clear_filter; 3538 int clear_filter = 0;
3539 3539
3540 if (func) { 3540 if (func) {
3541 func_g.type = filter_parse_regex(func, len, &func_g.search, 3541 func_g.type = filter_parse_regex(func, len, &func_g.search,