From: Nanyong Sun <sunnanyong@xxxxxxxxxx> Subject: nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group kobject_put() should be used to cleanup the memory associated with the kobject instead of kobject_del(). See the section "Kobject removal" of "Documentation/core-api/kobject.rst". Link: https://lkml.kernel.org/r/20210629022556.3985106-7-sunnanyong@xxxxxxxxxx Link: https://lkml.kernel.org/r/1625651306-10829-7-git-send-email-konishi.ryusuke@xxxxxxxxx Signed-off-by: Nanyong Sun <sunnanyong@xxxxxxxxxx> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/nilfs2/sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/nilfs2/sysfs.c~nilfs2-fix-memory-leak-in-nilfs_sysfs_delete_snapshot_group +++ a/fs/nilfs2/sysfs.c @@ -202,7 +202,7 @@ int nilfs_sysfs_create_snapshot_group(st void nilfs_sysfs_delete_snapshot_group(struct nilfs_root *root) { - kobject_del(&root->snapshot_kobj); + kobject_put(&root->snapshot_kobj); } /************************************************************************ _