From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 14AB8BA45 for ; Tue, 7 Mar 2023 18:06:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72415C433EF; Tue, 7 Mar 2023 18:06:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678212368; bh=IL+h7VUD0AKuHdBsR7HmpKcPYtGDT3B4VFw9NcL415U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zUl3x734SOjixXEd4fD5t1Fq4VpGRKBukoJh6/1ERlNpaQiNkaYuwP6NyHVr/FB12 X4sjSdfxEAJYwXdZovPGl0s7EmNGx3L/y7hagQb2B2/NSBud927aqPVgE7y3C/H3Ot b+gxLHLnI2qkH1QRnRE2X3nIY2zxaLvB9AayleLc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiasheng Jiang , Ping-Ke Shih , Leon Romanovsky , Kalle Valo , Sasha Levin Subject: [PATCH 6.1 163/885] wifi: rtw89: Add missing check for alloc_workqueue Date: Tue, 7 Mar 2023 17:51:37 +0100 Message-Id: <20230307170009.008391824@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230307170001.594919529@linuxfoundation.org> References: <20230307170001.594919529@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Jiasheng Jiang [ Upstream commit ed9e6166eb0984b718facb7ca59296098cc3aa64 ] Add check for the return value of alloc_workqueue since it may return NULL pointer. Moreover, add destroy_workqueue when rtw89_load_firmware fails. Fixes: e3ec7017f6a2 ("rtw89: add Realtek 802.11ax driver") Signed-off-by: Jiasheng Jiang Acked-by: Ping-Ke Shih Reviewed-by: Leon Romanovsky Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230104142901.1611-1-jiasheng@iscas.ac.cn Signed-off-by: Sasha Levin --- drivers/net/wireless/realtek/rtw89/core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index ad420d7ec8af9..a703bb70b8f55 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -3047,6 +3047,8 @@ 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); @@ -3070,6 +3072,7 @@ int rtw89_core_init(struct rtw89_dev *rtwdev) ret = rtw89_load_firmware(rtwdev); if (ret) { rtw89_warn(rtwdev, "no firmware loaded\n"); + destroy_workqueue(rtwdev->txq_wq); return ret; } rtw89_ser_init(rtwdev); -- 2.39.2