From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755390Ab2JZA2Z (ORCPT ); Thu, 25 Oct 2012 20:28:25 -0400 Received: from mail.kernel.org ([198.145.19.201]:53423 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753569Ab2JZAHa (ORCPT ); Thu, 25 Oct 2012 20:07:30 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, Peter Stuge , Hans de Goede , Alan Stern , Henrik Rydberg Subject: [ 04/85] usbdevfs: Fix broken scatter-gather transfer Date: Thu, 25 Oct 2012 17:05:22 -0700 Message-Id: <20121026000031.575096656@linuxfoundation.org> X-Mailer: git-send-email 1.7.12.2.421.g261b511 In-Reply-To: <20121026000031.107227138@linuxfoundation.org> References: <20121026000031.107227138@linuxfoundation.org> User-Agent: quilt/0.60-2.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Henrik Rydberg commit 014639003c77a51fc319c9fdf225e7747cb6e18d upstream. The handling of large output bulk transfers is broken; the same user page is read over and over again. Fixed with this patch. Acked-by: Peter Stuge Acked-by: Hans de Goede Acked-by: Alan Stern Signed-off-by: Henrik Rydberg Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devio.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1348,6 +1348,7 @@ static int proc_do_submiturb(struct dev_ ret = -EFAULT; goto error; } + uurb->buffer += u; } totlen -= u; }