tools lib traceevent: Unregister handler when mac80211 plugin is unloaded
authorNamhyung Kim <namhyung@kernel.org>
Thu, 16 Jan 2014 02:31:14 +0000 (11:31 +0900)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 16 Jan 2014 19:26:25 +0000 (16:26 -0300)
The event handler should be unregistered when the plugin is unloaded
otherwise it'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/1389839478-5887-9-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/lib/traceevent/plugin_mac80211.c

index 558a3b9..7e15a0f 100644 (file)
@@ -93,3 +93,10 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
                                      drv_bss_info_changed, NULL);
        return 0;
 }
+
+void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+{
+       pevent_unregister_event_handler(pevent, -1, "mac80211",
+                                       "drv_bss_info_changed",
+                                       drv_bss_info_changed, NULL);
+}