From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ding Tianhong Subject: [PATCH] iov_iter: don't revert if csum error Date: Fri, 28 Apr 2017 20:48:45 +0800 Message-ID: <080dafec-c57f-0546-4d2f-ce4a31222e25@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: David Miller , , , , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , LinuxArm Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org The patch 3278682 (make skb_copy_datagram_msg() et.al. preserve ->msg_iter on error) will revert the iov buffer if copy to iter failed, but it looks no need to revert for csum error, so fix it. Fixes: 3278682 ("make skb_copy_datagram_msg() et.al. preserve->msg_iter on error") Signed-off-by: Ding Tianhong --- net/core/datagram.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/datagram.c b/net/core/datagram.c index f4947e7..475a8e9 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -760,7 +760,7 @@ int skb_copy_and_csum_datagram_msg(struct sk_buff *skb, if (msg_data_left(msg) < chunk) { if (__skb_checksum_complete(skb)) - goto csum_error; + goto fault; if (skb_copy_datagram_msg(skb, hlen, msg, chunk)) goto fault; } else { -- 1.8.3.1