[merged mm-stable] mm-damon-reclaim-fix-potential-memory-leak-in-damon_reclaim_init.patch removed from -mm tree

[merged mm-stable] mm-damon-reclaim-fix-potential-memory-leak-in-damon_reclaim_init.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/damon/reclaim: fix potential memory leak in damon_reclaim_init()
has been removed from the -mm tree.  Its filename was
     mm-damon-reclaim-fix-potential-memory-leak-in-damon_reclaim_init.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Jianglei Nie <niejianglei2021@163.com>
Subject: mm/damon/reclaim: fix potential memory leak in damon_reclaim_init()
Date: Thu, 14 Jul 2022 14:37:46 +0800

damon_reclaim_init() allocates a memory chunk for ctx with
damon_new_ctx().  When damon_select_ops() fails, ctx is not released,
which will lead to a memory leak.

We should release the ctx with damon_destroy_ctx() when damon_select_ops()
fails to fix the memory leak.

Link: https://lkml.kernel.org/r/20220714063746.2343549-1-niejianglei2021@163.com
Fixes: 4d69c3457821 ("mm/damon/reclaim: use damon_select_ops() instead of damon_{v,p}a_set_operations()")
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.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-reclaim-fix-potential-memory-leak-in-damon_reclaim_init
+++ a/mm/damon/reclaim.c
@@ -435,8 +435,10 @@ static int __init damon_reclaim_init(voi
 	if (!ctx)
 		return -ENOMEM;
 
-	if (damon_select_ops(ctx, DAMON_OPS_PADDR))
+	if (damon_select_ops(ctx, DAMON_OPS_PADDR)) {
+		damon_destroy_ctx(ctx);
 		return -EINVAL;
+	}
 
 	ctx->callback.after_wmarks_check = damon_reclaim_after_wmarks_check;
 	ctx->callback.after_aggregation = damon_reclaim_after_aggregation;
_

Patches currently in -mm which might be from niejianglei2021@163.com are