* [PATCH] sample-trace-array: Remove trace_array 'sample-instance'
@ 2020-06-09 13:52 Kefeng Wang
2020-06-09 16:30 ` Divya Indi
0 siblings, 1 reply; 2+ messages in thread
From: Kefeng Wang @ 2020-06-09 13:52 UTC (permalink / raw)
To: Divya Indi, linux-kernel; +Cc: Steven Rostedt, Aruna Ramakrishna, Kefeng Wang
Remove trace_array 'sample-instance' if kthread_run fails
in sample_trace_array_init().
Signed-off-by: Kefeng Wang <wangkefeng.wang@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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] sample-trace-array: Remove trace_array 'sample-instance'
2020-06-09 13:52 [PATCH] sample-trace-array: Remove trace_array 'sample-instance' Kefeng Wang
@ 2020-06-09 16:30 ` Divya Indi
0 siblings, 0 replies; 2+ messages in thread
From: Divya Indi @ 2020-06-09 16:30 UTC (permalink / raw)
To: Kefeng Wang, linux-kernel; +Cc: Steven Rostedt, Aruna Ramakrishna
Reviewed-by: Divya Indi <divya.indi@oracle.com>
On 6/9/20 6:52 AM, Kefeng Wang wrote:
> Remove trace_array 'sample-instance' if kthread_run fails
> in sample_trace_array_init().
>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@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;
> }
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-06-09 13:52 [PATCH] sample-trace-array: Remove trace_array 'sample-instance' Kefeng Wang
2020-06-09 16:30 ` Divya Indi
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