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tools lib traceevent: Unregister handler when sched_switch plugin is unloaded

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The event 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 11:31:13 +09:00 • committed by Arnaldo Carvalho de Melo
commit 02bafd377c
1 changed files with 12 additions and 0 deletions
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12
tools/lib/traceevent/plugin_sched_switch.c
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@ -146,3 +146,15 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
sched_wakeup_handler, NULL);
return 0;
}
void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
{
pevent_unregister_event_handler(pevent, -1, "sched", "sched_switch",
sched_switch_handler, NULL);
pevent_unregister_event_handler(pevent, -1, "sched", "sched_wakeup",
sched_wakeup_handler, NULL);
pevent_unregister_event_handler(pevent, -1, "sched", "sched_wakeup_new",
sched_wakeup_handler, NULL);
}