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mm/damon/sysfs-schemes: kobject_del() scheme dirs

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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 directories by adding kobject_del() calls.

Link: https://lore.kernel.org/20260628220121.97360-4-sj@kernel.org
Fixes: 7e84b1f821 ("mm/damon/sysfs: support DAMON-based Operation Schemes")
Signed-off-by: SJ Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> # 5.18.x
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SJ Park
2026-06-28 15:01:12 -07:00
committed by Andrew Morton
parent 2603ef6f6e
commit 05fb6ac98c
1 changed files with 4 additions and 1 deletions
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5
mm/damon/sysfs-schemes.c
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@@ -2681,6 +2681,7 @@ void damon_sysfs_schemes_rm_dirs(struct damon_sysfs_schemes *schemes)
for (i = 0; i < schemes->nr; i++) {
damon_sysfs_scheme_rm_dirs(schemes_arr[i]);
kobject_del(&schemes_arr[i]->kobj);
kobject_put(&schemes_arr[i]->kobj);
}
schemes->nr = 0;
@@ -2722,13 +2723,15 @@ static int damon_sysfs_schemes_add_dirs(struct damon_sysfs_schemes *schemes,
goto out;
err = damon_sysfs_scheme_add_dirs(scheme);
if (err)
goto out;
goto del_out;
schemes_arr[i] = scheme;
schemes->nr++;
}
return 0;
del_out:
kobject_del(&scheme->kobj);
out:
damon_sysfs_schemes_rm_dirs(schemes);
kobject_put(&scheme->kobj);