From nobody Mon Sep 29 20:17:12 2025 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 C18FDC00140 for ; Mon, 15 Aug 2022 22:59:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229480AbiHOW7g (ORCPT ); Mon, 15 Aug 2022 18:59:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352340AbiHOW5e (ORCPT ); Mon, 15 Aug 2022 18:57:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 901E9696C8; Mon, 15 Aug 2022 12:56:17 -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 9951A6068D; Mon, 15 Aug 2022 19:56:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F573C433D6; Mon, 15 Aug 2022 19:56:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660593376; bh=mxljtDHMst5iwqEorc0AT/oDFsf1xLqdqqSlxIcDaPk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t/5iSo9YXpoCXa1teqGEcWT86pGty0cZcIC0L7Yfg10Uz7K8kfna55rqyRZTmAEUb eVUuBxtN8/s0V6pbh4nJUOkatgRHP6PVdKR/sYVIuD2RVGrMY9Fz81I01OUe03Is6H uYm+pDZqj6o9uj4ODoBXdtNTQHfuFWVmGHfakVuM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Yang Yingliang , John Garry , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 5.19 0245/1157] bus: hisi_lpc: fix missing platform_device_put() in hisi_lpc_acpi_probe() Date: Mon, 15 Aug 2022 19:53:21 +0200 Message-Id: <20220815180449.371980832@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180439.416659447@linuxfoundation.org> References: <20220815180439.416659447@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Yang Yingliang [ Upstream commit 54872fea6a5ac967ec2272aea525d1438ac6735a ] In error case in hisi_lpc_acpi_probe() after calling platform_device_add(), hisi_lpc_acpi_remove() can't release the failed 'pdev', so it will be leak, call platform_device_put() to fix this problem. I'v constructed this error case and tested this patch on D05 board. Fixes: 99c0228d6ff1 ("HISI LPC: Re-Add ACPI child enumeration support") Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Acked-by: John Garry Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/bus/hisi_lpc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/bus/hisi_lpc.c b/drivers/bus/hisi_lpc.c index 378f5d62a991..e7eaa8784fee 100644 --- a/drivers/bus/hisi_lpc.c +++ b/drivers/bus/hisi_lpc.c @@ -503,13 +503,13 @@ static int hisi_lpc_acpi_probe(struct device *hostdev) { struct acpi_device *adev =3D ACPI_COMPANION(hostdev); struct acpi_device *child; + struct platform_device *pdev; int ret; =20 /* Only consider the children of the host */ list_for_each_entry(child, &adev->children, node) { const char *hid =3D acpi_device_hid(child); const struct hisi_lpc_acpi_cell *cell; - struct platform_device *pdev; const struct resource *res; bool found =3D false; int num_res; @@ -571,22 +571,24 @@ static int hisi_lpc_acpi_probe(struct device *hostdev) =20 ret =3D platform_device_add_resources(pdev, res, num_res); if (ret) - goto fail; + goto fail_put_device; =20 ret =3D platform_device_add_data(pdev, cell->pdata, cell->pdata_size); if (ret) - goto fail; + goto fail_put_device; =20 ret =3D platform_device_add(pdev); if (ret) - goto fail; + goto fail_put_device; =20 acpi_device_set_enumerated(child); } =20 return 0; =20 +fail_put_device: + platform_device_put(pdev); fail: hisi_lpc_acpi_remove(hostdev); return ret; --=20 2.35.1