From patchwork Mon Aug 9 20:53:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergey Shtylyov X-Patchwork-Id: 12427275 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95DA4C4338F for ; Mon, 9 Aug 2021 20:53:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D0EE61040 for ; Mon, 9 Aug 2021 20:53:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236062AbhHIUxq (ORCPT ); Mon, 9 Aug 2021 16:53:46 -0400 Received: from mxout04.lancloud.ru ([45.84.86.114]:34550 "EHLO mxout04.lancloud.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234454AbhHIUxq (ORCPT ); Mon, 9 Aug 2021 16:53:46 -0400 Received: from LanCloud DKIM-Filter: OpenDKIM Filter v2.11.0 mxout04.lancloud.ru 47D8120D0DA4 Received: from LanCloud Received: from LanCloud Received: from LanCloud Subject: [PATCH v2 9/9] usb: phy: twl6030: add IRQ checks From: Sergey Shtylyov To: , Greg Kroah-Hartman , Felipe Balbi References: <47bacc02-4e34-3208-779c-7072a6261782@omp.ru> Organization: Open Mobile Platform Message-ID: <9507f50b-50f1-6dc4-f57c-3ed4e53a1c25@omp.ru> Date: Mon, 9 Aug 2021 23:53:16 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <47bacc02-4e34-3208-779c-7072a6261782@omp.ru> Content-Language: en-US X-Originating-IP: [192.168.11.198] X-ClientProxiedBy: LFEXT01.lancloud.ru (fd00:f066::141) To LFEX1907.lancloud.ru (fd00:f066::207) Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The driver neglects to check the result of platform_get_irq()'s calls and blithely passes the negative error codes to request_threaded_irq() (which takes *unsigned* IRQ #), causing them both to fail with -EINVAL, overriding an original error code. Stop calling request_threaded_irq() with the invalid IRQ #s. Fixes: c33fad0c3748 ("usb: otg: Adding twl6030-usb transceiver driver for OMAP4430") Signed-off-by: Sergey Shtylyov Acked-by: Felipe Balbi --- drivers/usb/phy/phy-twl6030-usb.c | 5 +++++ 1 file changed, 5 insertions(+) Index: usb/drivers/usb/phy/phy-twl6030-usb.c =================================================================== --- usb.orig/drivers/usb/phy/phy-twl6030-usb.c +++ usb/drivers/usb/phy/phy-twl6030-usb.c @@ -348,6 +348,11 @@ static int twl6030_usb_probe(struct plat twl->irq2 = platform_get_irq(pdev, 1); twl->linkstat = MUSB_UNKNOWN; + if (twl->irq1 < 0) + return twl->irq1; + if (twl->irq2 < 0) + return twl->irq2; + twl->comparator.set_vbus = twl6030_set_vbus; twl->comparator.start_srp = twl6030_start_srp;