From 3477fdbe83bd6ef002300f26779838d531653ad7 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Thu, 18 Nov 2021 20:43:45 +0800
Subject: [PATCH] mm/damon: remove unnecessary do_exit() from kdamond

mainline inclusion
from mainline-5.16
commit 5f7fe2b9b827662cf349ab45406d6cbf0cc6251f
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4GVMK
CVE: NA

-------------------------------------------------
Just return from the kthread function.

Link: https://lkml.kernel.org/r/20210927232421.17694-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Cc: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 5f7fe2b9b827662cf349ab45406d6cbf0cc6251f)
Signed-off-by: Yue Zou <zouyue3@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
---
 mm/damon/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 874558a790a0..61a9e3b37bc9 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -714,7 +714,7 @@ static int kdamond_fn(void *data)
 	nr_running_ctxs--;
 	mutex_unlock(&damon_lock);
 
-	do_exit(0);
+	return 0;
 }
 
 #include "core-test.h"
-- 
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