From patchwork Tue Dec 10 11:44:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 11281985 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6CAFF14E3 for ; Tue, 10 Dec 2019 11:45:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4B5CB207FF for ; Tue, 10 Dec 2019 11:45:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575978311; bh=mcq1zqd2ZgueCQz3xA7qaEUarto6aOD6uJIn7WW43Dg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=iPomfvEZZxHJRX9uDQvdd1UXRnm2WJnI9snFfW/oymI7kbUaoycMqI2YNzdV7qTXA fRpfGBUI+waTDfWNp/rxDWyZlh8CfPCVFfXFkVsdT5/K199/kIwCFpl7EN42uEOxEY Km1gSPmjLHu9wzKR1LdpGCrCugFt9d9WS0IcfjM8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727801AbfLJLox (ORCPT ); Tue, 10 Dec 2019 06:44:53 -0500 Received: from mail-lj1-f194.google.com ([209.85.208.194]:42735 "EHLO mail-lj1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727370AbfLJLot (ORCPT ); Tue, 10 Dec 2019 06:44:49 -0500 Received: by mail-lj1-f194.google.com with SMTP id e28so19473404ljo.9; Tue, 10 Dec 2019 03:44:48 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qWOB2/IV9LlS7RQezdilUBmbfySScHur6xA52oFN8Mk=; b=Q2NcCZ9MkksL/3NQxvpoyzOR6VBFKo9p5yK/8B6NjPgFUfI3t6ZsTrMcwRVlM1iMYy lcs484KF5ZFwH90hZC9hK7Yb9hj6BCUxyjQVi1XeVWZ3hdPawEYFAmSiF7HM6snygMsM VxaD/DYKZ6BNgNcqNH5wg9WK4Z1/cwn2sKLrz35Wudcc1W8tbPqXfX+UuQGcne75voB6 MTjGIjYX2MF2epTY2TwmTLkGm/3bJZcKfSxIWSuE0uIrU/N1ZHmqmtfhgmc9fdNyWxx+ wgQjhB6YARFsH8Cmzy7P4SRhsy8IHavrPIRWnT50nnDcIMURZ/zxck3PjJ1SPXW+V4zj pTjQ== X-Gm-Message-State: APjAAAWJDqm4L3C20tKD48CfAkWW6hICiueJ15Tc2pFfSVDwHkcOgdVM l/jlGPVXmeuk6xspFlWtsMc= X-Google-Smtp-Source: APXvYqynsdHOtBWjaFSURKa7gPhmEPTZGQhZLn7lMHihEI1WubA2H/zTUly8AXEPYsJuWUpQ+LO9+w== X-Received: by 2002:a2e:5850:: with SMTP id x16mr1332994ljd.228.1575978287598; Tue, 10 Dec 2019 03:44:47 -0800 (PST) Received: from xi.terra (c-14b8e655.07-184-6d6c6d4.bbcust.telenor.se. [85.230.184.20]) by smtp.gmail.com with ESMTPSA id x84sm1425212lfa.97.2019.12.10.03.44.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Dec 2019 03:44:43 -0800 (PST) Received: from johan by xi.terra with local (Exim 4.92.3) (envelope-from ) id 1iedwa-0001II-Td; Tue, 10 Dec 2019 12:44:44 +0100 From: Johan Hovold To: Kalle Valo Cc: QCA ath9k Development , Arend van Spriel , Franky Lin , Hante Meuleman , Chi-Hsien Lin , Wright Feng , Jes Sorensen , Amitkumar Karwar , Siva Rebbagondla , Daniel Drake , Ulrich Kunitz , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Johan Hovold , stable Subject: [PATCH 7/7] zd1211rw: fix storage endpoint lookup Date: Tue, 10 Dec 2019 12:44:26 +0100 Message-Id: <20191210114426.4713-8-johan@kernel.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191210114426.4713-1-johan@kernel.org> References: <20191210114426.4713-1-johan@kernel.org> MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Make sure to use the current alternate setting when verifying the storage interface descriptors to avoid submitting an URB to an invalid endpoint. Failing to do so could cause the driver to misbehave or trigger a WARN() in usb_submit_urb() that kernels with panic_on_warn set would choke on. Fixes: a1030e92c150 ("[PATCH] zd1211rw: Convert installer CDROM device into WLAN device") Cc: stable # 2.6.19 Signed-off-by: Johan Hovold --- drivers/net/wireless/zydas/zd1211rw/zd_usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c index 7b5c2fe5bd4d..8ff0374126e4 100644 --- a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c @@ -1263,7 +1263,7 @@ static void print_id(struct usb_device *udev) static int eject_installer(struct usb_interface *intf) { struct usb_device *udev = interface_to_usbdev(intf); - struct usb_host_interface *iface_desc = &intf->altsetting[0]; + struct usb_host_interface *iface_desc = intf->cur_altsetting; struct usb_endpoint_descriptor *endpoint; unsigned char *cmd; u8 bulk_out_ep;