tracing/filter: Free pred array on disabling of filter

Steven Rostedt · rostedt · commit f76690afd05e · 2011-02-07T20:56:18.000-05:00
When a filter is disabled, free the preds.

Cc: Tom Zanussi &lt;tzanussi@gmail.com&gt;
Signed-off-by: Steven Rostedt &lt;rostedt@goodmis.org&gt;
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
@@ -1388,6 +1388,10 @@ int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
 
 	if (!strcmp(strstrip(filter_string), "0")) {
 		filter_disable_preds(call);
+		reset_preds(call->filter);
+		/* Make sure the filter is not being used */
+		synchronize_sched();
+		__free_preds(call->filter);
 		remove_filter_string(call->filter);
 		goto out_unlock;
 	}
