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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB15FCCA47C for ; Wed, 8 Jun 2022 00:14:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1385676AbiFGWqQ (ORCPT ); Tue, 7 Jun 2022 18:46:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1380526AbiFGVf3 (ORCPT ); Tue, 7 Jun 2022 17:35:29 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9DAA170661; Tue, 7 Jun 2022 12:04:39 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 027F261277; Tue, 7 Jun 2022 19:04:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1251EC385A2; Tue, 7 Jun 2022 19:04:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1654628678; bh=Ztqhd0TbowCC03CC7VBugIukC/iEmK/9YAQ1b5xz4RU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bMDkRzx2T3r8lnStIXydvygSKbKcyw2TFJ+3Cm291cFri9mKkjj417DsFlx0Wwu9p RamVP2Dp7JY88qdhwy27mUdZmWEqr7UzzedEncHCPUEknQYa/z9B/bj3wcYSAYcR8S EgGFM1PrbPRPIodAyfMyV6V0b1+Gm7xanSga3kMg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zeal Robot , Lv Ruyi , Stephen Boyd , Dmitry Baryshkov , Sasha Levin Subject: [PATCH 5.18 375/879] drm/msm/hdmi: fix error check return value of irq_of_parse_and_map() Date: Tue, 7 Jun 2022 18:58:13 +0200 Message-Id: <20220607165013.755957146@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220607165002.659942637@linuxfoundation.org> References: <20220607165002.659942637@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: linux-kernel@vger.kernel.org From: Lv Ruyi [ Upstream commit 03371e4fbdeb7f596cbceacb59e474248b6d95ac ] The irq_of_parse_and_map() function returns 0 on failure, and does not return a negative value anyhow, so never enter this conditional branch. Fixes: f6a8eaca0ea1 ("drm/msm/mdp5: use irqdomains") Reported-by: Zeal Robot Signed-off-by: Lv Ruyi Reviewed-by: Stephen Boyd Patchwork: https://patchwork.freedesktop.org/patch/483294/ Link: https://lore.kernel.org/r/20220425091831.3500487-1-lv.ruyi@zte.com.cn Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/hdmi/hdmi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c index 07e2ad527af9..f6229262dcb0 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c @@ -302,9 +302,9 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi, drm_connector_attach_encoder(hdmi->connector, hdmi->encoder); hdmi->irq = irq_of_parse_and_map(pdev->dev.of_node, 0); - if (hdmi->irq < 0) { - ret = hdmi->irq; - DRM_DEV_ERROR(dev->dev, "failed to get irq: %d\n", ret); + if (!hdmi->irq) { + ret = -EINVAL; + DRM_DEV_ERROR(dev->dev, "failed to get irq\n"); goto fail; } -- 2.35.1