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tools lib traceevent: Unregister handler when xen plugin is unloaded

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The function 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/1389839478-5887-13-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2014-01-16 11:31:18 +09:00 committed by Arnaldo Carvalho de Melo
parent a157112cfc
commit bf6b3a95ff
1 changed files with 6 additions and 0 deletions
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6
tools/lib/traceevent/plugin_xen.c
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@ -128,3 +128,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
PEVENT_FUNC_ARG_VOID); PEVENT_FUNC_ARG_VOID);
return 0; return 0;
} }
void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
{
pevent_unregister_print_function(pevent, process_xen_hypercall_name,
"xen_hypercall_name");
}