From patchwork Tue Sep 1 15:11:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 264613 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=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 AA94EC433E7 for ; Tue, 1 Sep 2020 16:14:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 68D50204EC for ; Tue, 1 Sep 2020 16:14:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598976850; bh=ZtBz4H4zHKmKdeBV2j6B7ls2H3PJ6PDwFiAz16xd6zc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vCqFZjly9JBIPQq66shHp3ZI3DMcBXWyLZ4zHn7X5vhfH8PwUU75tLcIFK5zXYikH b7Z0t7z1/rSIQQpF2xys+H5MYGBTU7U1vfUaJFA2ulk5Iq78gQNepCRyScGzf5Yjr1 4s+W/DjupEyBu7ggolUOpXtOklWmve/vVukwZhrE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726733AbgIAPfn (ORCPT ); Tue, 1 Sep 2020 11:35:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:41622 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731161AbgIAPfk (ORCPT ); Tue, 1 Sep 2020 11:35:40 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 47E7A21534; Tue, 1 Sep 2020 15:35:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598974540; bh=ZtBz4H4zHKmKdeBV2j6B7ls2H3PJ6PDwFiAz16xd6zc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jcG1eAF90iosU/QfsmnhvX+rM5hSsf51O/VPlfO0/pRVRO2dRA4/JDkLTJQB4Dk2J TrivLwdeWhMl//Emc3f+0kGDyhX+Id9CD9eJbzRupcR/h8B7A7gjE89i43yoA6zkSN e6P8DjZJPpwTJ4+rR2aTFFHx01Pq5nzOnIYqa8Vs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zhang Shengju , Tang Bin , Krzysztof Kozlowski Subject: [PATCH 5.4 194/214] usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe() Date: Tue, 1 Sep 2020 17:11:14 +0200 Message-Id: <20200901151002.244766167@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200901150952.963606936@linuxfoundation.org> References: <20200901150952.963606936@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Tang Bin commit 1d4169834628d18b2392a2da92b7fbf5e8e2ce89 upstream. If the function platform_get_irq() failed, the negative value returned will not be detected here. So fix error handling in exynos_ohci_probe(). And when get irq failed, the function platform_get_irq() logs an error message, so remove redundant message here. Fixes: 62194244cf87 ("USB: Add Samsung Exynos OHCI diver") Signed-off-by: Zhang Shengju Cc: stable Signed-off-by: Tang Bin Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20200826144931.1828-1-tangbin@cmss.chinamobile.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ohci-exynos.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -171,9 +171,8 @@ static int exynos_ohci_probe(struct plat hcd->rsrc_len = resource_size(res); irq = platform_get_irq(pdev, 0); - if (!irq) { - dev_err(&pdev->dev, "Failed to get IRQ\n"); - err = -ENODEV; + if (irq < 0) { + err = irq; goto fail_io; }