[PATCH] nilfs2: fix memory leak in nilfs_sysfs_create_device_group

[Dongliang Mu <mudongliangabcd-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

The commit 8fd0c1b0647a ("nilfs2: fix memory leak in
nilfs_sysfs_delete_device_group") adds a kobject_put to free the leaking
object name. However, it is incomplete to only add kobject_put in the
nilfs_sysfs_delete_device_group. The function
nilfs_sysfs_create_device_group also needs the kobject_put to
free the object name in the error handling part.

Fix this by adding kobject_put in the error handling code of
nilfs_sysfs_create_device_group.

Signed-off-by: Dongliang Mu <mudongliangabcd-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 fs/nilfs2/sysfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nilfs2/sysfs.c b/fs/nilfs2/sysfs.c
index 68e8d61e28dd..7ab60711ca76 100644
--- a/fs/nilfs2/sysfs.c
+++ b/fs/nilfs2/sysfs.c
@@ -1024,6 +1024,7 @@ int nilfs_sysfs_create_device_group(struct super_block *sb)
 
 cleanup_dev_kobject:
 	kobject_del(&nilfs->ns_dev_kobj);
+	kobject_put(&nilfs->ns_dev_kobj);
 
 free_dev_subgroups:
 	kfree(nilfs->ns_dev_subgroups);
-- 
2.25.1