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/inode.c b/fs/ocfs2/inode.c
index 3025c0d..be71ca0 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -624,7 +624,7 @@
 		ocfs2_get_system_file_inode(osb, INODE_ALLOC_SYSTEM_INODE,
 					    le16_to_cpu(di->i_suballoc_slot));
 	if (!inode_alloc_inode) {
-		status = -EEXIST;
+		status = -ENOENT;
 		mlog_errno(status);
 		goto bail;
 	}
@@ -742,7 +742,7 @@
 							       ORPHAN_DIR_SYSTEM_INODE,
 							       orphaned_slot);
 		if (!orphan_dir_inode) {
-			status = -EEXIST;
+			status = -ENOENT;
 			mlog_errno(status);
 			goto bail;
 		}