ftrace: fix check for return value of register_module_notifier in event_trace_init
register_module_notifier() returns zero in the success case.
So fix the inverted fail case check in trace events modules
handler.
[ Impact: fix spurious warning on ftrace initialization]
Reported-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 0eec0c5..9e91c4a 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1174,7 +1174,7 @@
}
ret = register_module_notifier(&trace_module_nb);
- if (!ret)
+ if (ret)
pr_warning("Failed to register trace events module notifier\n");
return 0;