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tools lib traceevent: Unregister handler when hrtimer plugin is unloaded

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

Signed-off-by: Namhyung Kim <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Namhyung Kim 2014-01-16 11:31:10 +09:00 • committed by Arnaldo Carvalho de Melo
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);
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);
}