Received: by 2002:a05:6358:a55:b0:ec:fcf4:3ecf with SMTP id 21csp1031617rwb; Thu, 19 Jan 2023 05:56:50 -0800 (PST) X-Google-Smtp-Source: AMrXdXsUzjjctna08pIMd88I2N04/Ben3HKNm/fw+O1BSkCbmAq3Jgn/Na7zt37rJS/HbLHqY50O X-Received: by 2002:a17:907:9623:b0:869:236c:ac40 with SMTP id gb35-20020a170907962300b00869236cac40mr14451322ejc.31.1674136610399; Thu, 19 Jan 2023 05:56:50 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1674136610; cv=none; d=google.com; s=arc-20160816; b=RJlOjTTrnBvdCrRfoTgpDy8Ud6RlSueaLnpnj7xcnweyclRD7EhaTllJQ3ub29EfmM nnNhaSLnzxa7xXbq+zFvanWit7fbqdy5i7QsgBPBcN82p6zpw7NKEEGulqJ0RiFrqz+e hI/iCb6Wpj2A2BMJnJ6GvNTBY9nN7wbTENg8DVADqvwL1MaVqGG+KVolnKv2jwhvSiUO 9d9P8tYsZ+YALVWuKmHW2Tzh9Y/NfGGjdW2mFemv+8FQOlBYV9Gz4PxixJCP46PFiZkl /jGlyvqKC9bQ75pxlwjtIC+d0NT7qrS1zHdrBuw5gcgpTi6JXraox+Dhgtpt7BESMyFp 9KXA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=y5fbk5t5RbbBW2wMMEI1+c7b4B2mhMKOEQ9pvqCu6WU=; b=Lzl72zapUcASmiEyj/DnOR4YZssksep7Jcl14lJn3Iq5S2voNgmzYRO11edUMIR/0q Sx4tDr/HdsiNW0ZvrQVg4MuU7dwtvTq8L6jmLkfxJp2H5VbEgi3I9M7IZlpg+Wi5MOUz 0LKnnCmqUYNVLIJ5T8cA5HVcLtQGupl2a/Q++CPYUEYtAH+6UTq+P1Tcvwc6ygPW+hT/ /z4e4LZ2bv2udL6rEezOOtcHbWhMoeSb6PINJIA4aI+YWC9mgyTUQ+MT1nDPB/+6E8YQ v+LXTe+65xbnnY8e0P19Ie6PO5OzA7QEVLW3xmlI0ujFi+YZ/48KdSPVXlVLODF8es5l kPrg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@lunn.ch header.s=20171124 header.b=etdaKlva; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=lunn.ch Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id hz6-20020a1709072ce600b00864e9806bbfsi28278987ejc.142.2023.01.19.05.56.39; Thu, 19 Jan 2023 05:56:50 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@lunn.ch header.s=20171124 header.b=etdaKlva; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=lunn.ch Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231148AbjASNip (ORCPT + 44 others); Thu, 19 Jan 2023 08:38:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230456AbjASNin (ORCPT ); Thu, 19 Jan 2023 08:38:43 -0500 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4D9D4995A for ; Thu, 19 Jan 2023 05:38:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=y5fbk5t5RbbBW2wMMEI1+c7b4B2mhMKOEQ9pvqCu6WU=; b=etdaKlvaRJ10miQbFZ8gEKysYa qYQAupJC36Hu0rGVD9UI0xIBAE1h/Djmy+KXTIWai/xMwXvmSF21b9d/TTv4/Je4Tb6WPK2gQzwde IPj0VDB0reWBhMxZOjuNSNi7YP/WwRXDp0rKcqH6QPIVz4JK0V0VOeyYqLz97eN2ydA4=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1pIV7g-002Yn5-0c; Thu, 19 Jan 2023 14:38:32 +0100 Date: Thu, 19 Jan 2023 14:38:32 +0100 From: Andrew Lunn To: ye.xingchen@zte.com.cn Cc: gregory.clement@bootlin.com, sebastian.hesselbarth@gmail.com, linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARM: mvebu: potential dereference of null pointer Message-ID: References: <202301191051184033370@zte.com.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202301191051184033370@zte.com.cn> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 19, 2023 at 10:51:18AM +0800, ye.xingchen@zte.com.cn wrote: > From: Minghao Chi > > The return value of kzalloc() needs to be checked. > To avoid use of null pointer in case of the failure of alloc. > > Reported-by: Zeal Robot > Signed-off-by: Minghao Chi > Signed-off-by: ye xingchen Reviewed-by: Andrew Lunn Andrew