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Subject[PATCH 4/4] tracing: fix failure path in ftrace_regex_open()
Don't forget to free trace_parser if seq_open() returned failure.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
kernel/trace/ftrace.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 5c5cb9b..e70af98 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1621,8 +1621,10 @@ ftrace_regex_open(struct inode *inode, struct file *file, int enable)
if (!ret) {
struct seq_file *m = file->private_data;
m->private = iter;
- } else
+ } else {
+ trace_parser_put(&iter->parser);
kfree(iter);
+ }
} else
file->private_data = iter;
mutex_unlock(&ftrace_regex_lock);
--
1.6.3

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