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=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 1FC45C433F5 for ; Mon, 20 Sep 2021 17:17:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 090236323A for ; Mon, 20 Sep 2021 17:17:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345099AbhITRSa (ORCPT ); Mon, 20 Sep 2021 13:18:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:41202 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347968AbhITRQ1 (ORCPT ); Mon, 20 Sep 2021 13:16:27 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 25DF2613CD; Mon, 20 Sep 2021 16:58:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632157135; bh=lvA9zJZYdDFTuydCzqLwh9wrLs2k8MN6nGhzWgAqPDo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IyuRMMgY3W5f+JA9ctjNxaqZzuQfNrVYooTsTbTTqF2j4n51LIlbEhnKS9Xh/flxV UgAkg6qZjWYwro9+K/JCfrLs0FgmUTmM0E5rkg+lhqb7UGb2N79E3ZwSzLFXuGri1+ fMx192xINBKQhRR+Bs6N7fbVBUzqW1aTGGsYgDEk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Felipe Balbi , Sergey Shtylyov , Sasha Levin Subject: [PATCH 4.14 068/217] usb: phy: fsl-usb: add IRQ check Date: Mon, 20 Sep 2021 18:41:29 +0200 Message-Id: <20210920163926.929741932@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210920163924.591371269@linuxfoundation.org> References: <20210920163924.591371269@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sergey Shtylyov [ Upstream commit ecc2f30dbb25969908115c81ec23650ed982b004 ] The driver neglects to check the result of platform_get_irq()'s call and blithely passes the negative error codes to request_irq() (which takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding an original error code. Stop calling request_irq() with the invalid IRQ #s. Fixes: 0807c500a1a6 ("USB: add Freescale USB OTG Transceiver driver") Acked-by: Felipe Balbi Signed-off-by: Sergey Shtylyov Link: https://lore.kernel.org/r/b0a86089-8b8b-122e-fd6d-73e8c2304964@omp.ru Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/phy/phy-fsl-usb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index 9b4354a00ca7..968900c36451 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -886,6 +886,8 @@ int usb_otg_start(struct platform_device *pdev) /* request irq */ p_otg->irq = platform_get_irq(pdev, 0); + if (p_otg->irq < 0) + return p_otg->irq; status = request_irq(p_otg->irq, fsl_otg_isr, IRQF_SHARED, driver_name, p_otg); if (status) { -- 2.30.2