From patchwork Tue Oct 27 13:47:54 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: 307119 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 B1614C55178 for ; Tue, 27 Oct 2020 17:28:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67E4621D42 for ; Tue, 27 Oct 2020 17:28:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603819712; bh=9CLILCPVgTaUt4VkfpGYMDGq5kPlOrV2Y9UK5QuXMk0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DuET30gNSRs/xxwYvrW68YdDXGfNhhjKKFZ/6EAfGD5brhDLAssvkvdgD9FWWioXL yNay1JYE4r/bmaY0+BJR01ICeuBM+iBxNgPDsBMO0znLvJjcU7T8LYDJ0tPI3Kdw+f 9mOQ/X8K+Ob3UhsKV/CsiSMAWii00izOp9D53KZM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2899733AbgJ0RZs (ORCPT ); Tue, 27 Oct 2020 13:25:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:53956 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2900515AbgJ0Oxh (ORCPT ); Tue, 27 Oct 2020 10:53:37 -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 6DFA122281; Tue, 27 Oct 2020 14:53:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603810417; bh=9CLILCPVgTaUt4VkfpGYMDGq5kPlOrV2Y9UK5QuXMk0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qRCCt1pn/h96Fj7HkDQ8HDxPaGfTVExdPKuBalLDZ4r3+ATTXq/MH9ITbEsXs2naQ pdb+MEpxnexy79CWFNTrA/UCEpNBVtmE2fXytkJgBDNajU8V2pXdjiPoCFUxIIMH4K PVr5wAwbyuxXlJ9rUVAaW02Rb9TjOwcWJLaeRu/4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , "Dr. David Alan Gilbert" , Guenter Roeck , Sasha Levin Subject: [PATCH 5.8 131/633] hwmon: (w83627ehf) Fix a resource leak in probe Date: Tue, 27 Oct 2020 14:47:54 +0100 Message-Id: <20201027135528.831109185@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027135522.655719020@linuxfoundation.org> References: <20201027135522.655719020@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter [ Upstream commit 18360b33a071e5883250fd1e04bfdeff8c3887a3 ] Smatch has a new check for resource leaks which found a bug in probe: drivers/hwmon/w83627ehf.c:2417 w83627ehf_probe() warn: 'res->start' not released on lines: 2412. We need to clean up if devm_hwmon_device_register_with_info() fails. Fixes: 266cd5835947 ("hwmon: (w83627ehf) convert to with_info interface") Signed-off-by: Dan Carpenter Reviewed-by: Dr. David Alan Gilbert Link: https://lore.kernel.org/r/20200921125212.GA1128194@mwanda Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- drivers/hwmon/w83627ehf.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 5a5120121e507..3964ceab2817c 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -1951,8 +1951,12 @@ static int w83627ehf_probe(struct platform_device *pdev) data, &w83627ehf_chip_info, w83627ehf_groups); + if (IS_ERR(hwmon_dev)) { + err = PTR_ERR(hwmon_dev); + goto exit_release; + } - return PTR_ERR_OR_ZERO(hwmon_dev); + return 0; exit_release: release_region(res->start, IOREGION_LENGTH);