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=-16.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 3764AC433EF for ; Sat, 18 Sep 2021 09:48:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 09F1361251 for ; Sat, 18 Sep 2021 09:48:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238801AbhIRJtx (ORCPT ); Sat, 18 Sep 2021 05:49:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:53212 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238697AbhIRJtv (ORCPT ); Sat, 18 Sep 2021 05:49:51 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8056560F9C; Sat, 18 Sep 2021 09:48:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631958508; bh=J79zVyaYhSHXy2qTFijDe1+CyD3s14qalSH6pbbHD04=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZjH089EyKJiEY5cZLLL7rBNxGd7lmFFhUQQh7J8Mhrfb8/hU/5YpTQUkV7G0vdiCx I3RLBxFOYsxRYsndov3r5aS9hkLVjTFcMx+JfBhgL/UrFpQJxOnQtcd5EPtxtJigMJ Hc2UkudJl9S3qL9vNSxKTsCZ0CQ2IH4BjLOEY1w4= Date: Sat, 18 Sep 2021 11:48:09 +0200 From: Greg KH To: Jiapeng Chong Cc: Larry.Finger@lwfinger.net, phil@philpotter.co.uk, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] staging: r8188eu: Remove unneeded if-null-free check Message-ID: References: <1631956206-83175-1-git-send-email-jiapeng.chong@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1631956206-83175-1-git-send-email-jiapeng.chong@linux.alibaba.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Sep 18, 2021 at 05:10:06PM +0800, Jiapeng Chong wrote: > Eliminate the following coccicheck warning: > > ./drivers/staging/r8188eu/os_dep/usb_intf.c:545:3-8: WARNING: NULL check > before some freeing functions is not needed. > > Reported-by: Abaci Robot > Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver") > Signed-off-by: Jiapeng Chong > --- > drivers/staging/r8188eu/os_dep/usb_intf.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/staging/r8188eu/os_dep/usb_intf.c b/drivers/staging/r8188eu/os_dep/usb_intf.c > index d04d2f65..7e42a0a 100644 > --- a/drivers/staging/r8188eu/os_dep/usb_intf.c > +++ b/drivers/staging/r8188eu/os_dep/usb_intf.c > @@ -541,9 +541,7 @@ static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj, > if (status != _SUCCESS) { > if (pnetdev) > rtw_free_netdev(pnetdev); > - else if (padapter) > - vfree(padapter); > - padapter = NULL; > + vfree(padapter); > } > exit: > return padapter; > -- > 1.8.3.1 > You just changed how this function works. :( Please be MUCH more careful, and fix your robot. greg k-h