ocfs2: ocfs2_prep_new_orphaned_file() should return ret

If an error occurs, for example an EIO in __ocfs2_prepare_orphan_dir,
ocfs2_prep_new_orphaned_file will release the inode_ac, then when the
caller of ocfs2_prep_new_orphaned_file gets a 0 return, it will refer to a
NULL ocfs2_alloc_context struct in the following functions.  A kernel
panic happens.

Signed-off-by: "Xiaowei.Hu" <xiaowei.hu@oracle.com>
Reviewed-by: shencanquan <shencanquan@huawei.com>
Acked-by: Sunil Mushran <sunil.mushran@gmail.com>
Cc: Joe Jin <joe.jin@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 04ee1b57c243f01a54e59f4405e282e7c633d575..b563351753f1963932b943ff961472af453be2af 100644 (file)
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -2216,7 +2216,7 @@ out:
 
        brelse(orphan_dir_bh);
 
-       return 0;
+       return ret;
 }
 
 int ocfs2_create_inode_in_orphan(struct inode *dir,