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tracing/filters: free pred when clearing filters 

Impact: fix (small) per trace filter modification memory leak

Free the current pred when clearing the filters via the filter files.

Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: =?ISO-8859-1?Q?Fr=E9d=E9ric?= Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1237878851.8339.58.camel@charm-linux>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Tom Zanussi 2009-03-24 02:14:11 -05:00 committed by Ingo Molnar
parent 1fc2d5c119
commit 09f1f245c7
1 changed files with 2 additions and 0 deletions
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2
kernel/trace/trace_events.c
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@ -516,6 +516,7 @@ event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
if (pred->clear) { if (pred->clear) {
filter_free_preds(call); filter_free_preds(call);
filter_free_pred(pred);
return cnt; return cnt;
} }
@ -581,6 +582,7 @@ subsystem_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
if (pred->clear) { if (pred->clear) {
filter_free_subsystem_preds(system); filter_free_subsystem_preds(system);
filter_free_pred(pred);
return cnt; return cnt;
} }