Commit-ID:  02bafd377c1137d0705f224881cd21de123204f0
Gitweb:     http://git.kernel.org/tip/02bafd377c1137d0705f224881cd21de123204f0
Author:     Namhyung Kim <namhy...@kernel.org>
AuthorDate: Thu, 16 Jan 2014 11:31:13 +0900
Committer:  Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Thu, 16 Jan 2014 16:26:25 -0300

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 <namhy...@kernel.org>
Reviewed-by: Jiri Olsa <jo...@redhat.com>
Acked-by: Steven Rostedt <rost...@goodmis.org>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Namhyung Kim <namhyung....@lge.com>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Steven Rostedt <rost...@goodmis.org>
Link: 
http://lkml.kernel.org/r/1389839478-5887-8-git-send-email-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 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);
+}
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to