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=-14.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 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 014DCC433DB for ; Thu, 18 Mar 2021 02:49:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AFACA64E09 for ; Thu, 18 Mar 2021 02:49:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231191AbhCRCsc (ORCPT ); Wed, 17 Mar 2021 22:48:32 -0400 Received: from m12-17.163.com ([220.181.12.17]:57084 "EHLO m12-17.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231126AbhCRCsU (ORCPT ); Wed, 17 Mar 2021 22:48:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version; bh=ZDE7T kpNw2HAyd5WKd7F2ZaXSySBRfBW4yjJ09EgjKQ=; b=kSr253wgxZTcZIzg9t/sT AdA6BqkuAqCIRhq65VfY4Tk37A2wHDuCASMeHxoRVb1t265dJtG2b4MBfXebQ0wT MowRyF07NARpO+IwX/ECqUsEA1/0vrAFDoTv87xzAfz8AHNP8YnVa2OuvJHlwHBi y3kxMEjWVZzio8/TjYvlik= Received: from localhost (unknown [218.94.48.178]) by smtp13 (Coremail) with SMTP id EcCowAC3tLE3v1JgeOlcqg--.1500S2; Thu, 18 Mar 2021 10:47:19 +0800 (CST) Date: Thu, 18 Mar 2021 10:47:18 +0800 From: Chunyou Tang To: "Gustavo A. R. Silva" Cc: gustavoars@kernel.org, sam@ravnborg.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, tangchunyou@yulong.com Subject: Re: [PATCH] drivers/video/fbdev:modify 0 to NULL Message-ID: <20210318104718.00005767@163.com> In-Reply-To: <20f1664e-df4c-d085-cb25-1d05e8a793a3@embeddedor.com> References: <20210318023329.488-1-tangchunyou@163.com> <20f1664e-df4c-d085-cb25-1d05e8a793a3@embeddedor.com> Organization: yulong X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; i686-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-CM-TRANSID: EcCowAC3tLE3v1JgeOlcqg--.1500S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7Jw1kXw1UJF1kXF47uF4DArb_yoWDZrX_Zr 4DZrsrWrZ0yr1SvFn7ArZavr98tw4DZws7ZFnFqr93Gry3Arn5Wr1jvrn2vw4xGF47GrZr WrnFvFWIyr1S9jkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUbhFx5UUUUU== X-Originating-IP: [218.94.48.178] X-CM-SenderInfo: 5wdqwu5kxq50rx6rljoofrz/1tbiHhdZUVSItUPMzQAAsq Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org HI,Gustavo On Wed, 17 Mar 2021 20:41:15 -0500 "Gustavo A. R. Silva" wrote: > On 3/17/21 21:33, ChunyouTang wrote: > > From: tangchunyou > > > > modify 0 to NULL,info is a pointer,it should be > > > > compared with NULL,not 0 > > > > Signed-off-by: tangchunyou > > --- > > drivers/video/fbdev/offb.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c > > index 4501e84..cd1042f 100644 > > --- a/drivers/video/fbdev/offb.c > > +++ b/drivers/video/fbdev/offb.c > > @@ -412,7 +412,7 @@ static void __init offb_init_fb(const char > > *name, > > info = framebuffer_alloc(sizeof(u32) * 16, NULL); > > > > - if (info == 0) { > > + if (info == NULL) { > > if (!info) is better. > > -- > Gustavo > > > release_mem_region(res_start, res_size); > > return; > > } > > I think "if (info == NULL)" is more intuitive,and there have many compare likes "if (info == NULL)" in this file. -- ChunyouTang