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ftrace: Simplify glob handling in unregister_ftrace_function_probe_func()

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Handle a NULL glob properly and simplify the check.

Link: http://lkml.kernel.org/r/5df74d4ffb4721db6d5a22fa08ca031d62ead493.1494956770.git.naveen.n.rao@linux.vnet.ibm.com

Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Naveen N. Rao 2017-05-16 23:21:25 +05:30 committed by Steven Rostedt (VMware)
parent 30e7d894c1
commit cbab567c3d
1 changed files with 2 additions and 2 deletions
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4
kernel/trace/ftrace.c
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@ -4144,9 +4144,9 @@ unregister_ftrace_function_probe_func(char *glob, struct trace_array *tr,
int i, ret = -ENODEV;
int size;
if (glob && (strcmp(glob, "*") == 0 || !strlen(glob)))
if (!glob || !strlen(glob) || !strcmp(glob, "*"))
func_g.search = NULL;
else if (glob) {
else {
int not;
func_g.type = filter_parse_regex(glob, strlen(glob),