+ mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch added to -mm tree

+ mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm/damon: fix error return code in damon_reclaim_turn()
has been added to the -mm tree.  Its filename is
     mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch

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------------------------------------------------------
From: Yang Yingliang <yangyingliang@huawei.com>
Subject: mm/damon: fix error return code in damon_reclaim_turn()

If damon_reclaim_new_scheme() fails, it should return error code in
damon_reclaim_turn()

Link: https://lkml.kernel.org/r/20211025124500.2758060-1-yangyingliang@huawei.com
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/damon/reclaim.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/mm/damon/reclaim.c~mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix
+++ a/mm/damon/reclaim.c
@@ -292,8 +292,10 @@ static int damon_reclaim_turn(bool on)
 
 	/* Will be freed by 'damon_set_schemes()' below */
 	scheme = damon_reclaim_new_scheme();
-	if (!scheme)
+	if (!scheme) {
+		err = -ENOMEM;
 		goto free_region_out;
+	}
 	err = damon_set_schemes(ctx, &scheme, 1);
 	if (err)
 		goto free_scheme_out;
_

Patches currently in -mm which might be from yangyingliang@huawei.com are

mm-damon-introduce-damon-based-reclamation-damon_reclaim-fix.patch