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 400D2C43334 for ; Tue, 7 Jun 2022 21:49:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1382032AbiFGVtO (ORCPT ); Tue, 7 Jun 2022 17:49:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1381444AbiFGVsM (ORCPT ); Tue, 7 Jun 2022 17:48:12 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AAF40239099; Tue, 7 Jun 2022 12:08:12 -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 66965617DA; Tue, 7 Jun 2022 19:08:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 777DAC385A2; Tue, 7 Jun 2022 19:08:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1654628890; bh=7gLmPXzMhNy7D2VimkqVQcs4oFEM8KSRbDToOpCrFlw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=s6LAoqZy4UdzmE6fa9NbIkk/cQ1oBrhk2023b8W6wn44m/JhzGOCoVMi8bnwIQv2M SncGcolC8XnX68/t1qRKCp1LuJm1lznpXO5cLccFPhPSceaYC122ZJdHdDIWsu1qPu Zi/JFMMbjd/KNL5gOKSizLCAbGyXyrAf8FweiuGE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Zheng Yongjun , Daniel Lezcano , Sasha Levin Subject: [PATCH 5.18 492/879] thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe Date: Tue, 7 Jun 2022 19:00:10 +0200 Message-Id: <20220607165017.152295215@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: stable@vger.kernel.org From: Zheng Yongjun [ Upstream commit e20d136ec7d6f309989c447638365840d3424c8e ] platform_get_resource() may return NULL, add proper check to avoid potential NULL dereferencing. Fixes: 250e211057c72 ("thermal: broadcom: Add Stingray thermal driver") Signed-off-by: Zheng Yongjun Link: https://lore.kernel.org/r/20220425092929.90412-1-zhengyongjun3@huawei.com Signed-off-by: Daniel Lezcano Signed-off-by: Sasha Levin --- drivers/thermal/broadcom/sr-thermal.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/thermal/broadcom/sr-thermal.c b/drivers/thermal/broadcom/sr-thermal.c index 475ce2900771..85ab9edd580c 100644 --- a/drivers/thermal/broadcom/sr-thermal.c +++ b/drivers/thermal/broadcom/sr-thermal.c @@ -60,6 +60,9 @@ static int sr_thermal_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENOENT; + sr_thermal->regs = (void __iomem *)devm_memremap(&pdev->dev, res->start, resource_size(res), MEMREMAP_WB); -- 2.35.1