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authorNamhyung Kim <namhyung@kernel.org>2014-01-16 06:31:13 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-01-16 23:26:25 +0400
commit02bafd377c1137d0705f224881cd21de123204f0 (patch)
tree75d67dd676032bbd96004142e7765bd88fd7d9c1 /tools/lib
parent354a2bd0318e0758f93b8b24553f3376fa9dfa21 (diff)
downloadlinux-02bafd377c1137d0705f224881cd21de123204f0.tar.xz
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 <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/1389839478-5887-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/traceevent/plugin_sched_switch.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/lib/traceevent/plugin_sched_switch.c b/tools/lib/traceevent/plugin_sched_switch.c
index fea3724aa24f..f1ce60065258 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);
+}