Some bugs are found when insert synth_event_gen_test, and fixed by this
patch set. 

Shang XiaoJing (2):
  tracing: Fix memory leak in test_gen_synth_cmd() and
    test_empty_synth_event()
  tracing: Fix wild-memory-access in register_synth_event()
---
changes in v2:
- some clean up.
- remove redundant code.
---
 kernel/trace/synth_event_gen_test.c | 16 ++++++----------
 kernel/trace/trace_events_synth.c   |  3 ++-
 2 files changed, 8 insertions(+), 11 deletions(-)

-- 
2.17.1