2 files changed, 9 insertions, 3 deletions

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 31d4e7da191c..e71c472d6a81 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -321,9 +321,14 @@ int pevent_register_comm(struct pevent *pevent, const char *comm, int pid)
         return 0;
 }
 
-void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock)
+int pevent_register_trace_clock(struct pevent *pevent, const char *trace_clock)
 {
-        pevent->trace_clock = trace_clock;
+        pevent->trace_clock = strdup(trace_clock);
+        if (!pevent->trace_clock) {
+                errno = ENOMEM;
+                return -1;
+        }
+        return 0;
 }
 
 struct func_map {
@@ -6352,6 +6357,7 @@ void pevent_free(struct pevent *pevent)
                 free_handler(handle);
         }
 
+        free(pevent->trace_clock);
         free(pevent->events);
         free(pevent->sort_events);
 
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 6abda54d76f2..84e554f84574 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -599,7 +599,7 @@ enum trace_flag_type {
 };
 
 int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
-void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock);
+int pevent_register_trace_clock(struct pevent *pevent, const char *trace_clock);
 int pevent_register_function(struct pevent *pevent, char *name,
                              unsigned long long addr, char *mod);
 int pevent_register_print_string(struct pevent *pevent, const char *fmt,