From nobody Mon Sep 29 22:46:26 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD100C25B0D for ; Tue, 16 Aug 2022 00:05:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352605AbiHPAFI (ORCPT ); Mon, 15 Aug 2022 20:05:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355558AbiHOX4j (ORCPT ); Mon, 15 Aug 2022 19:56:39 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9243616306E; Mon, 15 Aug 2022 13:19:57 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2270761057; Mon, 15 Aug 2022 20:19:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 107EEC433D6; Mon, 15 Aug 2022 20:19:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660594796; bh=UTztaEE8l6pZclggwKNlEFaJ8BgFSoAmWP/+gRernds=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tXruzDutR4SktlMAfLpMR1VzOzpBonOVpXrNYT6uVWJaxtBWfIOUke3W/oARP/67P y/SHSnMKs/6aMfImriQCkyTxPZfB+I7lDsjh3Cew99iVtHYLt0rMg/9iGCZ+K/WLWH 6ikn9qo66pHbUDqVMufZs+4ZTUPMro4WxAMrlQYc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hacash Robot , William Dean , Ping-Ke Shih , Kalle Valo , Sasha Levin Subject: [PATCH 5.19 0562/1157] wifi: rtw88: check the return value of alloc_workqueue() Date: Mon, 15 Aug 2022 19:58:38 +0200 Message-Id: <20220815180502.085806225@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180439.416659447@linuxfoundation.org> References: <20220815180439.416659447@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: William Dean [ Upstream commit 42bbf810e155efc6129a3a648ae5300f00b79d7b ] The function alloc_workqueue() in rtw_core_init() can fail, but there is no check of its return value. To fix this bug, its return value should be checked with new error handling code. Fixes: fe101716c7c9d ("rtw88: replace tx tasklet with work queue") Reported-by: Hacash Robot Signed-off-by: William Dean Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220723063756.2956189-1-williamsukatube@16= 3.com Signed-off-by: Sasha Levin --- drivers/net/wireless/realtek/rtw88/main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wirele= ss/realtek/rtw88/main.c index efabd5b1bf5b..645ef1d01895 100644 --- a/drivers/net/wireless/realtek/rtw88/main.c +++ b/drivers/net/wireless/realtek/rtw88/main.c @@ -1984,6 +1984,10 @@ int rtw_core_init(struct rtw_dev *rtwdev) timer_setup(&rtwdev->tx_report.purge_timer, rtw_tx_report_purge_timer, 0); rtwdev->tx_wq =3D alloc_workqueue("rtw_tx_wq", WQ_UNBOUND | WQ_HIGHPRI, 0= ); + if (!rtwdev->tx_wq) { + rtw_warn(rtwdev, "alloc_workqueue rtw_tx_wq failed\n"); + return -ENOMEM; + } =20 INIT_DELAYED_WORK(&rtwdev->watch_dog_work, rtw_watch_dog_work); INIT_DELAYED_WORK(&coex->bt_relink_work, rtw_coex_bt_relink_work); --=20 2.35.1