From 73713357ab58aacda1af715bb5a623528dbbfd79 Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Sat, 7 Dec 2013 04:55:00 +0800
Subject: [PATCH] tun: remove useless codes in tun_chr_aio_read() and
 tun_recvmsg()

By checking related codes, it is impossible that ret > len or total_len,
so we should remove some useless codes in both above functions.

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reading git-format-patch failed