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 X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 C7F2EC46460 for ; Wed, 15 Aug 2018 11:51:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 60C5D21470 for ; Wed, 15 Aug 2018 11:51:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 60C5D21470 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729173AbeHOOnj (ORCPT ); Wed, 15 Aug 2018 10:43:39 -0400 Received: from mx2.suse.de ([195.135.220.15]:36666 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727141AbeHOOnj (ORCPT ); Wed, 15 Aug 2018 10:43:39 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 5D0E5ACCE; Wed, 15 Aug 2018 11:51:46 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 1A82ADAC96; Wed, 15 Aug 2018 13:51:38 +0200 (CEST) Date: Wed, 15 Aug 2018 13:51:38 +0200 From: David Sterba To: zhong jiang Cc: clm@fb.com, jbacik@fb.com, dsterba@suse.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] btrfs:free-space-cache: remove unneeded NULL check before kfree Message-ID: <20180815115137.GJ24025@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, zhong jiang , clm@fb.com, jbacik@fb.com, dsterba@suse.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org References: <1534140369-11578-1-git-send-email-zhongjiang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1534140369-11578-1-git-send-email-zhongjiang@huawei.com> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 13, 2018 at 02:06:08PM +0800, zhong jiang wrote: > Kfree has taken the null pointer into account. So remove the check > before kfree. > > The issue is detected with the help of Coccinelle. > > Signed-off-by: zhong jiang Added to misc-next, thanks.