From patchwork Thu Feb 27 13:35:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 11408753 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 67BBA1580 for ; Thu, 27 Feb 2020 14:45:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 47131246A4 for ; Thu, 27 Feb 2020 14:45:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582814738; bh=KNL8q96VW054YfXBZfeHGlfLCZJ5LleWzR+KoB/9j4w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=m7tegE5PgDbVUeLApPynrne1Iagwvoz4xcmxguH74pHQjSVoL/V0r2/EqlMoGTKVZ zkNMOZ+UmXKeGDwnaVdFrJpJlGG4Tj4ac97aWft4mvhnO91V5AQ+37jrn6sGf4UpWi C8PNzijkP9RQz01/hs3JVjdBZFOIOxXAi98aQVdw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730176AbgB0Opd (ORCPT ); Thu, 27 Feb 2020 09:45:33 -0500 Received: from mail.kernel.org ([198.145.29.99]:42666 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730055AbgB0Nq0 (ORCPT ); Thu, 27 Feb 2020 08:46:26 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 CA4A720578; Thu, 27 Feb 2020 13:46:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582811186; bh=KNL8q96VW054YfXBZfeHGlfLCZJ5LleWzR+KoB/9j4w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HSQDU5VQDAzbq6/OSSqJYd007RN5t4Y2QYunkuSr1rHkd78c3ynF94d7DZ29jE1DA IKyATR4ESdr1/MMAB2gjcQDjJMrKpiZvfLoMFrmOy7txTTtWv0LVrsbiYRDqWDWQYp TSiTJV4yi4y8R4WNj//nP4IqKf7JyfVkQe77pgPw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tiezhu Yang , Paul Burton , Ralf Baechle , Huacai Chen , Jiaxun Yang , linux-mips@vger.kernel.org, Sasha Levin Subject: [PATCH 4.9 034/165] MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init() Date: Thu, 27 Feb 2020 14:35:08 +0100 Message-Id: <20200227132236.102534187@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200227132230.840899170@linuxfoundation.org> References: <20200227132230.840899170@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Tiezhu Yang [ Upstream commit 72d052e28d1d2363f9107be63ef3a3afdea6143c ] If kzalloc fails, it should return -ENOMEM, otherwise may trigger a NULL pointer dereference. Fixes: 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface") Signed-off-by: Tiezhu Yang Signed-off-by: Paul Burton Cc: Ralf Baechle Cc: Huacai Chen Cc: Jiaxun Yang Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Sasha Levin --- arch/mips/loongson64/loongson-3/platform.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/loongson64/loongson-3/platform.c b/arch/mips/loongson64/loongson-3/platform.c index 25a97cc0ee336..0db4cc3196ebd 100644 --- a/arch/mips/loongson64/loongson-3/platform.c +++ b/arch/mips/loongson64/loongson-3/platform.c @@ -31,6 +31,9 @@ static int __init loongson3_platform_init(void) continue; pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL); + if (!pdev) + return -ENOMEM; + pdev->name = loongson_sysconf.sensors[i].name; pdev->id = loongson_sysconf.sensors[i].id; pdev->dev.platform_data = &loongson_sysconf.sensors[i];