From 02bafd377c1137d0705f224881cd21de123204f0 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Thu, 16 Jan 2014 11:31:13 +0900 Subject: [PATCH] tools lib traceevent: Unregister handler when sched_switch plugin is unloaded The event handlers should be unregistered when the plugin is unloaded otherwise they'll try to access invalid memory. Signed-off-by: Namhyung Kim Reviewed-by: Jiri Olsa Acked-by: Steven Rostedt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1389839478-5887-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/plugin_sched_switch.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c index fea3724..f1ce600 100644 --- a/tools/lib/traceevent/plugin_sched_switch.c +++ b/tools/lib/traceevent/plugin_sched_switch.c @@ -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); +} -- 2.7.4