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Diffstat (limited to 'kernel/trace/trace_events_filter.c')
-rw-r--r--kernel/trace/trace_events_filter.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index c6b2edfb7fe..93660fbbf62 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -409,6 +409,9 @@ static int init_preds(struct ftrace_event_call *call)
409 struct filter_pred *pred; 409 struct filter_pred *pred;
410 int i; 410 int i;
411 411
412 if (call->filter)
413 return 0;
414
412 filter = call->filter = kzalloc(sizeof(*filter), GFP_KERNEL); 415 filter = call->filter = kzalloc(sizeof(*filter), GFP_KERNEL);
413 if (!call->filter) 416 if (!call->filter)
414 return -ENOMEM; 417 return -ENOMEM;
@@ -447,11 +450,9 @@ static int init_subsystem_preds(struct event_subsystem *system)
447 if (strcmp(call->system, system->name) != 0) 450 if (strcmp(call->system, system->name) != 0)
448 continue; 451 continue;
449 452
450 if (!call->filter) { 453 err = init_preds(call);
451 err = init_preds(call); 454 if (err)
452 if (err) 455 return err;
453 return err;
454 }
455 } 456 }
456 457
457 return 0; 458 return 0;