| From | Namhyung Kim <> | Subject | [PATCH 09/17] tools lib traceevent: Unregister handler when hrtimer plugin unloaded | Date | Wed, 15 Jan 2014 10:45:32 +0900 |
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The timer handlers should be unregistered when the plugin unloaded otherwise they'll try to access invalid memory.
Cc: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> --- tools/lib/traceevent/plugin_hrtimer.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/tools/lib/traceevent/plugin_hrtimer.c b/tools/lib/traceevent/plugin_hrtimer.c index 0b0ebf30aa44..12bf14cc1152 100644 --- a/tools/lib/traceevent/plugin_hrtimer.c +++ b/tools/lib/traceevent/plugin_hrtimer.c @@ -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); +} -- 1.7.11.7
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