[PATCH 04/11] mm/damon/sysfs-schemes: kobject_del() scheme region dirs

[SJ Park]

On CONFIG_DEBUG_KOBJECT_RELEASE enabled kernel, lack of kobject_del()
could cause directories creation failures due to the name conflicts. Fix
those issues for scheme region directories by adding kobject_del()
calls.

This issue was discovered [1] by Sashiko, though its analysis was
partially incorrect.

[1] https://lore.kernel.org/20260517205828.6204-1-sj@xxxxxxxxxx

Fixes: 9277d0367ba1 ("mm/damon/sysfs-schemes: implement scheme region directory")
Cc: <stable@xxxxxxxxxxxxxxx> # 6.2.x
Signed-off-by: SJ Park <sj@xxxxxxxxxx>
---
 mm/damon/sysfs-schemes.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index db496d2e493a4..9eb28fe77b5b0 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -332,6 +332,7 @@ static void damon_sysfs_scheme_regions_rm_dirs(
 	list_for_each_entry_safe(r, next, &regions->regions_list, list) {
 		damos_sysfs_region_rm_dirs(r);
 		list_del(&r->list);
+		kobject_del(&r->kobj);
 		kobject_put(&r->kobj);
 		regions->nr_regions--;
 	}
-- 
2.47.3