From patchwork Tue Aug 6 11:28:42 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jussi Kivilinna X-Patchwork-Id: 2839327 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 101F49F479 for ; Tue, 6 Aug 2013 11:28:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2653120161 for ; Tue, 6 Aug 2013 11:28:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 04C0420144 for ; Tue, 6 Aug 2013 11:28:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755922Ab3HFL2t (ORCPT ); Tue, 6 Aug 2013 07:28:49 -0400 Received: from sypressi.dnainternet.net ([83.102.40.135]:47030 "EHLO sypressi.dnainternet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755492Ab3HFL2s (ORCPT ); Tue, 6 Aug 2013 07:28:48 -0400 Received: from localhost (localhost [127.0.0.1]) by sypressi.dnainternet.net (Postfix) with ESMTP id 2EDC9261313; Tue, 6 Aug 2013 14:28:47 +0300 (EEST) X-Virus-Scanned: DNA Postiturva at dnainternet.net X-Spam-Score: -1 X-Spam-Level: X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from sypressi.dnainternet.net ([83.102.40.135]) by localhost (sypressi.dnainternet.net [127.0.0.1]) (DNA Postiturva, port 10041) with ESMTP id j6fX4YuUjpYJ; Tue, 6 Aug 2013 14:28:46 +0300 (EEST) Received: from kirsikkapuu.dnainternet.net (kirsikkapuu.dnainternet.net [83.102.40.214]) by sypressi.dnainternet.net (Postfix) with ESMTP id BF22D261317; Tue, 6 Aug 2013 14:28:46 +0300 (EEST) Received: from hayate.dalek.fi (dyn2-212-50-133-197.psoas.suomi.net [212.50.133.197]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by kirsikkapuu.dnainternet.net (Postfix) with ESMTPS id 9421A5FA9F; Tue, 6 Aug 2013 14:28:42 +0300 (EEST) Received: from fate.lan ([10.0.0.10] helo=fate) by hayate.dalek.fi with esmtp (Exim 4.80) (envelope-from ) id 1V6fRS-0002SL-6v; Tue, 06 Aug 2013 14:28:42 +0300 Received: from localhost6.localdomain6 (unknown [127.0.0.1]) by fate (Postfix) with ESMTP id 2F6C32007C9; Tue, 6 Aug 2013 14:28:42 +0300 (EEST) Subject: [PATCH] zd1201: do not use stack as URB transfer_buffer To: "John W. Linville" From: Jussi Kivilinna Cc: netdev@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org Date: Tue, 06 Aug 2013 14:28:42 +0300 Message-ID: <20130806112842.14897.95337.stgit@localhost6.localdomain6> User-Agent: StGit/0.16 MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Patch fixes zd1201 not to use stack as URB transfer_buffer. URB buffers need to be DMA-able, which stack is not. Patch is only compile tested. Cc: stable@vger.kernel.org Signed-off-by: Jussi Kivilinna --- drivers/net/wireless/zd1201.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c index 4941f20..b8ba1f9 100644 --- a/drivers/net/wireless/zd1201.c +++ b/drivers/net/wireless/zd1201.c @@ -98,10 +98,12 @@ static int zd1201_fw_upload(struct usb_device *dev, int apfw) goto exit; err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4, - USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT); + USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT); if (err < 0) goto exit; + memcpy(&ret, buf, sizeof(ret)); + if (ret & 0x80) { err = -EIO; goto exit;