[PATCH] tracing: Fix doc mistakes in trace sample

[Wei Yang]

As the example below shows, DECLARE_EVENT_CLASS() is used instead of
DEFINE_EVENT_CLASS().

Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
---
 samples/trace_events/trace-events-sample.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/trace_events/trace-events-sample.h b/samples/trace_events/trace-events-sample.h
index 80b4a70315b6..13a35f7cbe66 100644
--- a/samples/trace_events/trace-events-sample.h
+++ b/samples/trace_events/trace-events-sample.h
@@ -416,7 +416,7 @@ TRACE_EVENT_FN(foo_bar_with_fn,
  * Note, TRACE_EVENT() itself is simply defined as:
  *
  * #define TRACE_EVENT(name, proto, args, tstruct, assign, printk)  \
- *  DEFINE_EVENT_CLASS(name, proto, args, tstruct, assign, printk); \
+ *  DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, printk); \
  *  DEFINE_EVENT(name, name, proto, args)
  *
  * The DEFINE_EVENT() also can be declared with conditions and reg functions:
-- 
2.23.0