ocfs2: use ENOENT instead of EEXIST when get system file fails

When ocfs2_get_system_file_inode fails, it is obscure to set the return
value to -EEXIST. So change it to -ENOENT.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 4983740..09f90cb 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -2808,7 +2808,7 @@
 						       ORPHAN_DIR_SYSTEM_INODE,
 						       osb->slot_num);
 	if (!orphan_dir_inode) {
-		status = -EEXIST;
+		status = -ENOENT;
 		mlog_errno(status);
 		goto leave;
 	}