ubifs: too early register_filesystem()

doing that before you are ready to handle mount() is a Bad Idea(tm)...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 20403dc..ae0e76b 100644 (file)
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2264,19 +2264,12 @@ static int __init ubifs_init(void)
                return -EINVAL;
        }
 
-       err = register_filesystem(&ubifs_fs_type);
-       if (err) {
-               ubifs_err("cannot register file system, error %d", err);
-               return err;
-       }
-
-       err = -ENOMEM;
        ubifs_inode_slab = kmem_cache_create("ubifs_inode_slab",
                                sizeof(struct ubifs_inode), 0,
                                SLAB_MEM_SPREAD | SLAB_RECLAIM_ACCOUNT,
                                &inode_slab_ctor);
        if (!ubifs_inode_slab)
-               goto out_reg;
+               return -ENOMEM;
 
        register_shrinker(&ubifs_shrinker_info);
 
@@ -2288,15 +2281,20 @@ static int __init ubifs_init(void)
        if (err)
                goto out_compr;
 
+       err = register_filesystem(&ubifs_fs_type);
+       if (err) {
+               ubifs_err("cannot register file system, error %d", err);
+               goto out_dbg;
+       }
        return 0;
 
+out_dbg:
+       dbg_debugfs_exit();
 out_compr:
        ubifs_compressors_exit();
 out_shrinker:
        unregister_shrinker(&ubifs_shrinker_info);
        kmem_cache_destroy(ubifs_inode_slab);
-out_reg:
-       unregister_filesystem(&ubifs_fs_type);
        return err;
 }
 /* late_initcall to let compressors initialize first */