summaryrefslogtreecommitdiffstats
path: root/tools
diff options
context:
space:
mode:
authorNamhyung Kim <namhyung@kernel.org>2014-01-16 11:31:10 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2014-01-16 16:26:24 -0300
commit4061edaa54744dca833051119e763f073dd3c334 (patch)
treedfa58fb51eb1513fc8335c7b41579ab853a8c02a /tools
parentac668c7b7d87c1895faf196a337b5ddfd32a0e21 (diff)
downloadop-kernel-dev-4061edaa54744dca833051119e763f073dd3c334.zip
op-kernel-dev-4061edaa54744dca833051119e763f073dd3c334.tar.gz
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@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/1389839478-5887-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/lib/traceevent/plugin_hrtimer.c10
1 files changed, 10 insertions, 0 deletions
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);
+}
OpenPOWER on IntegriCloud