[RFC][PATCH 06/12] tracing/filter: Free pred array on disabling of filter

[Steven Rostedt]

From: Steven Rostedt <srostedt@xxxxxxxxxx>

When a filter is disabled, free the preds.

Cc: Tom Zanussi <tzanussi@xxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 kernel/trace/trace_events_filter.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 8c560eb..23753f6 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1389,6 +1389,10 @@ 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;
 	}
-- 
1.7.2.3


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