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-rw-r--r--kernel/trace/trace_events.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 2fe110341359..686ec399f2a8 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1657,7 +1657,12 @@ static struct ftrace_ops trace_ops __initdata =
static __init void event_trace_self_test_with_function(void)
{
- register_ftrace_function(&trace_ops);
+ int ret;
+ ret = register_ftrace_function(&trace_ops);
+ if (WARN_ON(ret < 0)) {
+ pr_info("Failed to enable function tracer for event tests\n");
+ return;
+ }
pr_info("Running tests again, along with the function tracer\n");
event_trace_self_tests();
unregister_ftrace_function(&trace_ops);