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tools lib traceevent: Unregister handler when hrtimer plugin is unloaded 

The timer handlers should be unregistered when the plugin is unloaded
otherwise they'll try to access invalid memory.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1389839478-5887-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2014-01-16 11:31:10 +09:00 committed by Arnaldo Carvalho de Melo
parent ac668c7b7d
commit 4061edaa54
1 changed files with 10 additions and 0 deletions
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10
tools/lib/traceevent/plugin_hrtimer.c
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@ -76,3 +76,13 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
timer_start_handler, NULL); timer_start_handler, NULL);
return 0; return 0;
} }
void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
{
pevent_unregister_event_handler(pevent, -1,
"timer", "hrtimer_expire_entry",
timer_expire_handler, NULL);
pevent_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
timer_start_handler, NULL);
}