Commit 4061edaa authored Jan 16, 2014 by Namhyung Kim Committed by Arnaldo Carvalho de Melo Jan 16, 2014

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>

parent ac668c7b

tools/lib/traceevent/plugin_hrtimer.c

+10 −0

Original line number	Original line	Diff line number	Diff line
	@@ -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);
			}