tree a47e1315e9a3385c24ea1dc7756594cda2fbbeb5
parent ebe6e90ccc6679cb01d2b280e4b61e6092d4bedb
parent 6575257c60e1a26a5319ccf2b5ce5b6449001017
author Linus Torvalds <torvalds@linux-foundation.org> 1508323410 -0400
committer Linus Torvalds <torvalds@linux-foundation.org> 1508323410 -0400
mergetag object 6575257c60e1a26a5319ccf2b5ce5b6449001017
 type commit
 tag trace-v4.14-rc3
 tagger Steven Rostedt <rostedt@goodmis.org> 1508274182 -0400
 
 Testing a new trace event format, I triggered a bug by doing:
 
   # modprobe trace-events-sample
   # echo 1 > /sys/kernel/debug/tracing/events/sample-trace/enable
   # rmmod trace-events-sample
 
 This would cause an oops. The issue is that I added another trace
 event sample that reused a reg function of another trace event to
 create a thread to call the tracepoints. The problem was that the
 reg function couldn't handle nested calls (reg; reg; unreg; unreg;)
 and created two threads (instead of one) and only removed one
 on exit.
 
 This isn't a critical bug as the bug is only in sample code. But sample
 code should be free of known bugs to prevent others from copying
 it. This is why this is also marked for stable.
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Merge tag 'trace-v4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Testing a new trace event format, I triggered a bug by doing:

    # modprobe trace-events-sample
    # echo 1 > /sys/kernel/debug/tracing/events/sample-trace/enable
    # rmmod trace-events-sample

  This would cause an oops. The issue is that I added another trace
  event sample that reused a reg function of another trace event to
  create a thread to call the tracepoints. The problem was that the reg
  function couldn't handle nested calls (reg; reg; unreg; unreg;) and
  created two threads (instead of one) and only removed one on exit.

  This isn't a critical bug as the bug is only in sample code. But
  sample code should be free of known bugs to prevent others from
  copying it. This is why this is also marked for stable"

* tag 'trace-v4.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing/samples: Fix creation and deletion of simple_thread_fn creation