From mboxrd@z Thu Jan 1 00:00:00 1970 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 9FCAEC4320A for ; Mon, 9 Aug 2021 20:23:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8601960F25 for ; Mon, 9 Aug 2021 20:23:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236233AbhHIUYP (ORCPT ); Mon, 9 Aug 2021 16:24:15 -0400 Received: from mxout02.lancloud.ru ([45.84.86.82]:49698 "EHLO mxout02.lancloud.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236221AbhHIUYP (ORCPT ); Mon, 9 Aug 2021 16:24:15 -0400 Received: from LanCloud DKIM-Filter: OpenDKIM Filter v2.11.0 mxout02.lancloud.ru BE5C62230633 Received: from LanCloud Received: from LanCloud Received: from LanCloud Subject: [PATCH v2 2/9] usb: dwc3: qcom: add IRQ check From: Sergey Shtylyov To: , Greg Kroah-Hartman , Felipe Balbi References: <47bacc02-4e34-3208-779c-7072a6261782@omp.ru> CC: Andy Gross , Bjorn Andersson , Organization: Open Mobile Platform Message-ID: <45fec3da-1679-5bfe-5d74-219ca3fb28e7@omp.ru> Date: Mon, 9 Aug 2021 23:23:51 +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-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit 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 In dwc3_qcom_acpi_register_core(), the driver neglects to check the result of platform_get_irq()'s call and blithely assigns the negative error codes to the allocated child device's IRQ resource and then passing this resource to platform_device_add_resources() and later causing dwc3_otg_get_irq() to fail anyway. Stop calling platform_device_add_resources() with the invalid IRQ #s, so that there's less complexity in the IRQ error checking. Fixes: 2bc02355f8ba ("usb: dwc3: qcom: Add support for booting with ACPI") Signed-off-by: Sergey Shtylyov Acked-by: Felipe Balbi --- Changes in version 2: - added Felipe's ACK. drivers/usb/dwc3/dwc3-qcom.c | 4 ++++ 1 file changed, 4 insertions(+) Index: usb/drivers/usb/dwc3/dwc3-qcom.c =================================================================== --- usb.orig/drivers/usb/dwc3/dwc3-qcom.c +++ usb/drivers/usb/dwc3/dwc3-qcom.c @@ -614,6 +614,10 @@ static int dwc3_qcom_acpi_register_core( qcom->acpi_pdata->dwc3_core_base_size; irq = platform_get_irq(pdev_irq, 0); + if (irq < 0) { + ret = irq; + goto out; + } child_res[1].flags = IORESOURCE_IRQ; child_res[1].start = child_res[1].end = irq;