From: Chao Yu <chao2.yu@samsung.com>
Date: Tue, 24 Jun 2014 02:34:00 +0000 (+0800)
Subject: f2fs: fix error path in init_inode_metadata
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~325^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90d72459ccb47335a4348947506fd091e63f7cf8;p=pandora-kernel.git

f2fs: fix error path in init_inode_metadata

If we fail in this path:
->init_inode_metadata
  ->make_empty_dir
    ->get_new_data_page
      ->grab_cache_page return -ENOMEM

We will bug on in error path of init_inode_metadata when call remove_inode_page
because i_block = 2 (one inode block will be released later & one dentry block).

We should release the dentry block in init_inode_metadata to avoid this BUG_ON,
and avoid leak of dentry block resource, because we never have second chance to
release that block in ->evict_inode as in upper error path we make this inode
'bad'.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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