From patchwork Mon Dec 21 05:18:24 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Glen Lee X-Patchwork-Id: 7893231 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 5ED8A9F318 for ; Mon, 21 Dec 2015 05:17:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 99790202E9 for ; Mon, 21 Dec 2015 05:17:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B8107202B8 for ; Mon, 21 Dec 2015 05:17:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751248AbbLUFRG (ORCPT ); Mon, 21 Dec 2015 00:17:06 -0500 Received: from eusmtp01.atmel.com ([212.144.249.243]:11491 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751194AbbLUFRE (ORCPT ); Mon, 21 Dec 2015 00:17:04 -0500 Received: from glen-ubuntu.corp.atmel.com (10.161.101.13) by eusmtp01.atmel.com (10.161.101.31) with Microsoft SMTP Server id 14.3.235.1; Mon, 21 Dec 2015 06:17:01 +0100 From: Glen Lee To: CC: , , , , , , , , Subject: [PATCH RESEND 20/46] staging: wilc1000: fixes potential null dereference 'wid.val' Date: Mon, 21 Dec 2015 14:18:24 +0900 Message-ID: <1450675130-17866-21-git-send-email-glen.lee@atmel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1450675130-17866-1-git-send-email-glen.lee@atmel.com> References: <1450675130-17866-1-git-send-email-glen.lee@atmel.com> MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Leo Kim This patch fixes the error reported by smatch. - Handle_ListenStateExpired() error: potential null dereference 'wid.val' If kmalloc failed, referenced to a NULL pointer. Signed-off-by: Leo Kim Signed-off-by: Glen Lee --- drivers/staging/wilc1000/host_interface.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index d1707f6..2289ba3 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -2635,8 +2635,10 @@ static u32 Handle_ListenStateExpired(struct host_if_drv *hif_drv, wid.size = 2; wid.val = kmalloc(wid.size, GFP_KERNEL); - if (!wid.val) + if (!wid.val) { PRINT_ER("Failed to allocate memory\n"); + return -ENOMEM; + } wid.val[0] = u8remain_on_chan_flag; wid.val[1] = FALSE_FRMWR_CHANNEL;