[PATCH] sample-trace-array: Remove trace_array 'sample-instance'

[Kefeng Wang]

Remove trace_array 'sample-instance' if kthread_run fails
in sample_trace_array_init().

Signed-off-by: Kefeng Wang <wangkefeng.w...@huawei.com>
---
 samples/ftrace/sample-trace-array.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/samples/ftrace/sample-trace-array.c 
b/samples/ftrace/sample-trace-array.c
index 9e437f930280..6aba02a31c96 100644
--- a/samples/ftrace/sample-trace-array.c
+++ b/samples/ftrace/sample-trace-array.c
@@ -115,8 +115,12 @@ static int __init sample_trace_array_init(void)
        trace_printk_init_buffers();
 
        simple_tsk = kthread_run(simple_thread, NULL, "sample-instance");
-       if (IS_ERR(simple_tsk))
+       if (IS_ERR(simple_tsk)) {
+               trace_array_put(tr);
+               trace_array_destroy(tr);
                return -1;
+       }
+
        return 0;
 }
 
-- 
2.27.0