Commit-ID: 4061edaa54744dca833051119e763f073dd3c334
Gitweb: http://git.kernel.org/tip/4061edaa54744dca833051119e763f073dd3c334
Author: Namhyung Kim <namhyung@xxxxxxxxxx>
AuthorDate: Thu, 16 Jan 2014 11:31:10 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 16 Jan 2014 16:26:24 -0300
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@xxxxxxxxxx>
Reviewed-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung.kim@xxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1389839478-5887-5-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
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 0b0ebf3..12bf14c 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);
+}
--
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