From patchwork Wed Jan 4 09:33:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiasheng Jiang X-Patchwork-Id: 640334 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 4A642C46467 for ; Wed, 4 Jan 2023 09:34:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234683AbjADJeQ (ORCPT ); Wed, 4 Jan 2023 04:34:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234245AbjADJeN (ORCPT ); Wed, 4 Jan 2023 04:34:13 -0500 Received: from cstnet.cn (smtp23.cstnet.cn [159.226.251.23]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 2E079D7B; Wed, 4 Jan 2023 01:34:11 -0800 (PST) Received: from localhost.localdomain (unknown [124.16.138.125]) by APP-03 (Coremail) with SMTP id rQCowACHj5cDSLVjCH9tCg--.33466S2; Wed, 04 Jan 2023 17:33:56 +0800 (CST) From: Jiasheng Jiang To: pkshih@realtek.com, kvalo@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jiasheng Jiang Subject: [PATCH] wifi: rtw89: Add missing check for alloc_workqueue Date: Wed, 4 Jan 2023 17:33:53 +0800 Message-Id: <20230104093353.48239-1-jiasheng@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: rQCowACHj5cDSLVjCH9tCg--.33466S2 X-Coremail-Antispam: 1UD129KBjvdXoW7XrW5Gry7uF4Utr43Ar45GFg_yoWDurbEgr y2qFy2kry8Gw1akrs09FyfAryFyrykCrnaqa93trW3trWaq3yfAr95ZrZxJwn3Gwnxury7 W3yYqFy8A34rWjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbVxFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0 I7IYx2IY67AKxVWUAVWUtwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628v n2kIc2xKxwCY02Avz4vE14v_GFWl42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr 0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY 17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcV C0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY 6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa 73UjIFyTuYvjfU0xhLUUUUU X-Originating-IP: [124.16.138.125] X-CM-SenderInfo: pmld2xxhqjqxpvfd2hldfou0/ Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add check for the return value of alloc_workqueue since it may return NULL pointer. Fixes: e3ec7017f6a2 ("rtw89: add Realtek 802.11ax driver") Signed-off-by: Jiasheng Jiang --- drivers/net/wireless/realtek/rtw89/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index 931aff8b5dc9..006fe0499f81 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -3124,6 +3124,8 @@ int rtw89_core_init(struct rtw89_dev *rtwdev) INIT_DELAYED_WORK(&rtwdev->cfo_track_work, rtw89_phy_cfo_track_work); INIT_DELAYED_WORK(&rtwdev->forbid_ba_work, rtw89_forbid_ba_work); rtwdev->txq_wq = alloc_workqueue("rtw89_tx_wq", WQ_UNBOUND | WQ_HIGHPRI, 0); + if (!rtwdev->txq_wq) + return -ENOMEM; spin_lock_init(&rtwdev->ba_lock); spin_lock_init(&rtwdev->rpwm_lock); mutex_init(&rtwdev->mutex);