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tracing: Fix minor bugs for __unregister_ftrace_function_probe

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Fix the condition of strcmp for "*".
Also fix NULL pointer dereference when glob is NULL.

Signed-off-by: Atsushi Tsuji <a-tsuji@bk.jp.nec.com>
LKML-Reference: <4AAF6726.5090905@bk.jp.nec.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Atsushi Tsuji 2009-09-15 19:06:30 +09:00 committed by Steven Rostedt
parent fe832a3a48
commit b36461da2a
1 changed files with 2 additions and 2 deletions
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4
kernel/trace/ftrace.c
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@ -2062,9 +2062,9 @@ __unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
int i, len = 0;
char *search;
if (glob && (strcmp(glob, "*") || !strlen(glob)))
if (glob && (strcmp(glob, "*") == 0 || !strlen(glob)))
glob = NULL;
else {
else if (glob) {
int not;
type = ftrace_setup_glob(glob, strlen(glob), &search, &not);