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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 5D0B9C54FD0 for ; Mon, 20 Apr 2020 12:49:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3887120747 for ; Mon, 20 Apr 2020 12:49:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587386964; bh=1Ke0FHQ8L7f/O4kVoZF4DVWzmo94lYs/wxyB+0UbbxM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ayn6O+3RldiACJchbbBQrPuvxgYF/RaDkKytyXD+78+J2SbsP28h3z7eYFqybmqc3 cgCPCODVCxWSrYeIMvzX0QrCttiE4dTxdSCJcUxVfWIUEUZzBthhcHrH45j9Z9Zs1f DfGD9L0hPlsa+6lnj7Rj8hldm8y7wk2+g920zOi4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729401AbgDTMtW (ORCPT ); Mon, 20 Apr 2020 08:49:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:46236 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729390AbgDTMtS (ORCPT ); Mon, 20 Apr 2020 08:49:18 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 33C1C206DD; Mon, 20 Apr 2020 12:49:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587386957; bh=1Ke0FHQ8L7f/O4kVoZF4DVWzmo94lYs/wxyB+0UbbxM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PCkw5Psd6yrfmdN4tn0zUEFsf+e5+QvB+evic5SLC5vfrTMFSLwlFVDFWktucHch/ 26+rVfHyhDTt98l+5LWj4Tv+vnPbCX5AnW5fgqInpAeyBiopS5mz6msLvvO10Yd0l+ pqtPlxgADwTKPxH7iHrATZFdOM7jw3FjzegBAdqs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dedy Lansky , Maya Erez , Kalle Valo , Lee Jones Subject: [PATCH 4.19 35/40] wil6210: check rx_buff_mgmt before accessing it Date: Mon, 20 Apr 2020 14:39:45 +0200 Message-Id: <20200420121506.150644862@linuxfoundation.org> X-Mailer: git-send-email 2.26.1 In-Reply-To: <20200420121444.178150063@linuxfoundation.org> References: <20200420121444.178150063@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dedy Lansky commit d6a553c0c61b0b0219764e4d4fc14e385085f374 upstream. Make sure rx_buff_mgmt is initialized before accessing it. Signed-off-by: Dedy Lansky Signed-off-by: Maya Erez Signed-off-by: Kalle Valo Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/ath/wil6210/txrx_edma.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/net/wireless/ath/wil6210/txrx_edma.c +++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c @@ -268,6 +268,9 @@ static void wil_move_all_rx_buff_to_free struct list_head *active = &wil->rx_buff_mgmt.active; dma_addr_t pa; + if (!wil->rx_buff_mgmt.buff_arr) + return; + while (!list_empty(active)) { struct wil_rx_buff *rx_buff = list_first_entry(active, struct wil_rx_buff, list);