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 82787BA32 for ; Tue, 7 Mar 2023 17:18:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81C98C4339C; Tue, 7 Mar 2023 17:18:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678209527; bh=ggjhY2VIrOaEhJBvVa2lDTDQMlqG/BGOo4AsLywwTsU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ICYkD0qhanLEOQM3XJ+4InSu5VcOBvZeCgdeZBioXG8oWexmaaXoB+ZbY1ZbzNztQ gO36JJhqKvp4o0QddNIZywt9EiljStuK8op16qwaHQzVdOffH+08QuwVrUgK5bbArJ gZDOPyVZmRMAM8gLEwa3oEtshWCnoONNHxaDwFqg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lorenzo Bianconi , Felix Fietkau , Sasha Levin Subject: [PATCH 6.2 0247/1001] wifi: mt76: mt7996: fix memory leak in mt7996_mcu_exit Date: Tue, 7 Mar 2023 17:50:19 +0100 Message-Id: <20230307170032.516984969@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230307170022.094103862@linuxfoundation.org> References: <20230307170022.094103862@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: Lorenzo Bianconi [ Upstream commit da5b4d93e141b52c5a71d0c41a042d1bcaf70d2e ] Always purge mcu skb queues in mt7996_mcu_exit routine even if mt7996_firmware_state fails. Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index d781c6e0f33ac..d593ed9e3f73c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -2460,13 +2460,14 @@ void mt7996_mcu_exit(struct mt7996_dev *dev) __mt76_mcu_restart(&dev->mt76); if (mt7996_firmware_state(dev, false)) { dev_err(dev->mt76.dev, "Failed to exit mcu\n"); - return; + goto out; } mt76_wr(dev, MT_TOP_LPCR_HOST_BAND(0), MT_TOP_LPCR_HOST_FW_OWN); if (dev->hif2) mt76_wr(dev, MT_TOP_LPCR_HOST_BAND(1), MT_TOP_LPCR_HOST_FW_OWN); +out: skb_queue_purge(&dev->mt76.mcu.res_q); } -- 2.39.2