From patchwork Wed Dec 7 02:18:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 13066568 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 5F079C63706 for ; Wed, 7 Dec 2022 02:21:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229774AbiLGCVH (ORCPT ); Tue, 6 Dec 2022 21:21:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229775AbiLGCU4 (ORCPT ); Tue, 6 Dec 2022 21:20:56 -0500 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADA0A5436A for ; Tue, 6 Dec 2022 18:20:55 -0800 (PST) Received: from dggpemm500007.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4NRgwg6PvszRpmv; Wed, 7 Dec 2022 10:20:03 +0800 (CST) Received: from huawei.com (10.175.103.91) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 7 Dec 2022 10:20:53 +0800 From: Yang Yingliang To: , , CC: , Subject: [PATCH v2 3/6] Bluetooth: hci_h5: don't call kfree_skb() under spin_lock_irqsave() Date: Wed, 7 Dec 2022 10:18:32 +0800 Message-ID: <20221207021835.3012559-4-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221207021835.3012559-1-yangyingliang@huawei.com> References: <20221207021835.3012559-1-yangyingliang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org It is not allowed to call kfree_skb() from hardware interrupt context or with interrupts being disabled. So replace kfree_skb() with dev_kfree_skb_irq() under spin_lock_irqsave(). Fixes: 43eb12d78960 ("Bluetooth: Fix/implement Three-wire reliable packet sending") Signed-off-by: Yang Yingliang --- drivers/bluetooth/hci_h5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index c5a0409ef84f..6455bc4fb5bb 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -313,7 +313,7 @@ static void h5_pkt_cull(struct h5 *h5) break; __skb_unlink(skb, &h5->unack); - kfree_skb(skb); + dev_kfree_skb_irq(skb); } if (skb_queue_empty(&h5->unack))