Messages in this thread Patch in this message | | | From | Weitao Hou <> | Subject | [PATCH] kernel/hung_task.c: add error info when failed to start khungtaskd | Date | Fri, 22 Oct 2021 16:47:55 +0800 |
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we need add necessary error info when core thread started failed
Signed-off-by: Weitao Hou <houweitao@didiglobal.com> --- kernel/hung_task.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/kernel/hung_task.c b/kernel/hung_task.c index 8cc07e7f29aa..8a95997a693e 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -354,6 +354,10 @@ static int __init hung_task_init(void) pm_notifier(hungtask_pm_notify, 0); watchdog_task = kthread_run(watchdog, NULL, "khungtaskd"); + if (IS_ERR(watchdog_task)) { + pr_err("Failed to start khungtaskd\n"); + watchdog_task = NULL; + } return 0; } -- 2.17.1
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