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authorLi Zefan <lizf@cn.fujitsu.com>2009-10-13 03:28:57 +0200
committerIngo Molnar <mingo@elte.hu>2009-10-13 08:05:17 +0200
commit8ad807318fcd62aba0e18c7c7fbfcc1af3fcdbab (patch)
tree2e2d934ae03cc7e567b35bbca0de58e105a3b6b6 /kernel
parenttracing: fix trace_vprintk call (diff)
downloadlinux-8ad807318fcd62aba0e18c7c7fbfcc1af3fcdbab.tar.xz
linux-8ad807318fcd62aba0e18c7c7fbfcc1af3fcdbab.zip
tracing/filters: Fix memory leak when setting a filter
Every time we set a filter, we leak memory allocated by postfix_append_operand() and postfix_append_op(). Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: <stable@kernel.org> # for v2.6.31.x LKML-Reference: <4AD3D7D9.4070400@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_events_filter.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 23245785927f..98a6cc5c64ed 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -933,8 +933,9 @@ static void postfix_clear(struct filter_parse_state *ps)
while (!list_empty(&ps->postfix)) {
elt = list_first_entry(&ps->postfix, struct postfix_elt, list);
- kfree(elt->operand);
list_del(&elt->list);
+ kfree(elt->operand);
+ kfree(elt);
}
}