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[209.132.180.67]) by mx.google.com with ESMTP id b41-v6si4135426pla.306.2018.09.28.01.16.32; Fri, 28 Sep 2018 01:16:48 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2018-07-02 header.b=hIbUSsnu; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728978AbeI1Oiv (ORCPT + 99 others); Fri, 28 Sep 2018 10:38:51 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:43310 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726440AbeI1Oiv (ORCPT ); Fri, 28 Sep 2018 10:38:51 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w8S8DniY038469; Fri, 28 Sep 2018 08:16:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2018-07-02; bh=R6iNgq3nTGQBT6FK2Le/cmD+556UncVXUnDzUjyx3ys=; b=hIbUSsnuHyQEsb3ZVvyrnVVMgUhto4x/fKGQj84eXIwMO/8GQY+eCmeeh/xD/725HCDa azTPM8ndCZQWkhZn4LQRLGWz21vybBRwi5EnGLIrxyqO0zV+6bwVna/rvOI2V/oRY2Uc iY28ZG1YDPw5knfQxcxoVscwq2KC3uBnSMOwvlSAvscxl2fndO9pWH1HO7kbb8BFgbPa SmEL35Dw/WSkUs8upNFeSuX+q8AxcaEr38O7Rq+c4JCz80Zs8kUe3f8BonZL/RQUBjze nhOAxcNzb/APxY5bhH8ZEUZzCBOQ/SA5jJPE9rAE+PkQvDLRB45wFpjfn32AB8QT5OVm dg== Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp2120.oracle.com with ESMTP id 2mndppxfk1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 28 Sep 2018 08:16:11 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w8S8GAEC032433 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 28 Sep 2018 08:16:10 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w8S8GAOg007471; Fri, 28 Sep 2018 08:16:10 GMT Received: from mwanda (/197.232.248.111) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 28 Sep 2018 01:16:10 -0700 Date: Fri, 28 Sep 2018 11:16:01 +0300 From: Dan Carpenter To: Aymen Qader Cc: devel@driverdev.osuosl.org, Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Wolfram Sang Subject: Re: [PATCH v3] staging: ks7010: Add null pointer check for skb Message-ID: <20180928081601.is2gl764krxcvtlv@mwanda> References: <20180927151614.25470-1-qader.aymen@gmail.com> <20180928081325.krgawue3cs6mavw2@mwanda> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180928081325.krgawue3cs6mavw2@mwanda> User-Agent: NeoMutt/20170609 (1.8.3) X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9029 signatures=668707 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=845 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809280087 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Btw, if you have the cross function DB built then Smatch says that the NULL check can be removed here no problem. $ smdb hostif_data_request [ snip ] drivers/staging/ks7010/ks_wlan_net.c | ks_wlan_start_xmit | hostif_data_request | PARAM_VALUE | 1 | skb | s64min-(-1),1-s64max regards, dan carpenter