tracing/profile: fix profile_disable vs module_unload

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If the correspoding module is unloaded before ftrace_profile_disable()
is called, event->profile_disable() won't be called, which can
cause oops:

  # insmod trace-events-sample.ko
  # perf record -f -a -e sample:foo_bar sleep 3 &
  # sleep 1
  # rmmod trace_events_sample
  # insmod trace-events-sample.ko
  OOPS!

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4A9214E3.2070807@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

...

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Li Zefan 2009-08-24 12:19:47 +08:00 • committed by Steven Rostedt

parent 4818d80942

commit 558e6547e4

1 changed files with 4 additions and 1 deletions

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kernel/trace/trace_event_profile.c

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