[Yaffs] [PATCH] yaffsram need get_sb_nodev

yaffsram and yaffsram2 need to use get_sb_nodev() instead of get_sb_bdev()
and kill_litter_super() instead of kill_block_super().

See ramfs, for example.
diff --git a/fs/yaffs2/yaffs_fs.c b/fs/yaffs2/yaffs_fs.c
--- a/fs/yaffs2/yaffs_fs.c
+++ b/fs/yaffs2/yaffs_fs.c
@@ -1699,7 +1699,7 @@ static DECLARE_FSTYPE(yaffs2_fs_type, "y
static struct super_block *yaffs_ram_read_super(struct file_system_type * fs, int flags, const char *dev_name, void *data)
{

-    return get_sb_bdev(fs, flags, dev_name, data, yaffs_internal_read_super_ram);
+    return get_sb_nodev(fs, flags, data, yaffs_internal_read_super_ram);
 }

@@ -1707,8 +1707,7 @@ static struct file_system_type yaffs_ram
     .owner        = THIS_MODULE,
     .name        = "yaffsram",
     .get_sb        = yaffs_ram_read_super,
-    .kill_sb    = kill_block_super,
-//    .kill_sb    = kill_litter_super,
+    .kill_sb    = kill_litter_super,
     .fs_flags    = 0 ,
 };
 #else
@@ -1728,7 +1727,7 @@ static DECLARE_FSTYPE(yaffs_ram_fs_type,
 static struct super_block *yaffs2_ram_read_super(struct file_system_type * fs, int flags, const char *dev_name, void *data)
 {

-    return get_sb_bdev(fs, flags, dev_name, data, yaffs2_internal_read_super_ram);
+    return get_sb_nodev(fs, flags, data, yaffs2_internal_read_super_ram);
 }

@@ -1736,8 +1735,7 @@ static struct file_system_type yaffs2_ra
     .owner        = THIS_MODULE,
     .name        = "yaffs2ram",
     .get_sb        = yaffs2_ram_read_super,
-    .kill_sb    = kill_block_super,
-//    .kill_sb    = kill_litter_super,
+    .kill_sb    = kill_litter_super,
     .fs_flags    = 0 ,
 };
 #else