[PATCH] tracing: fix incorrect tracer freeing when opening tracing pipe

[zhangyi (F)]

Commit d716ff71dd12 ("tracing: Remove taking of trace_types_lock in
pipe files") use the current tracer instead of the copy in
tracing_open_pipe(), but it forget to remove the freeing sentence in
the error path.

Fixes: d716ff71dd12 ("tracing: Remove taking of trace_types_lock in pipe files")
Signed-off-by: zhangyi (F) <yi.zh...@huawei.com>
---
 kernel/trace/trace.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index c521b73..b583ff7 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5624,7 +5624,6 @@ static int tracing_open_pipe(struct inode *inode, struct 
file *filp)
        return ret;
 
 fail:
-       kfree(iter->trace);
        kfree(iter);
        __trace_array_put(tr);
        mutex_unlock(&trace_types_lock);
-- 
2.7.4