From mboxrd@z Thu Jan 1 00:00:00 1970 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 DA692C46467 for ; Mon, 16 Jan 2023 17:03:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232218AbjAPRDu (ORCPT ); Mon, 16 Jan 2023 12:03:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230155AbjAPRDI (ORCPT ); Mon, 16 Jan 2023 12:03:08 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBFBF3F291 for ; Mon, 16 Jan 2023 08:45:11 -0800 (PST) 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 62FB36104F for ; Mon, 16 Jan 2023 16:45:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78F46C433EF; Mon, 16 Jan 2023 16:45:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673887510; bh=0k3lGUS36r8bRQHXKxUR13pENtOHtHM2i8fes38mm90=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DUIowypCOrPkzW2s/a96zhEWcd28qk6802xi++K7HBqPx753w7AMqyIimCmete8I/ aVVUsfxolpmo/jq8w/jsKyVA/wshxOj28SDjjhHLN5vJWInJF4jw6XDq8M58KrsY4a vA7A9kIa0qYA/9k8XDDYK0ua5m3p1KeYlSyX+WKw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yang Yingliang , Luiz Augusto von Dentz , Sasha Levin Subject: [PATCH 4.19 177/521] Bluetooth: hci_core: dont call kfree_skb() under spin_lock_irqsave() Date: Mon, 16 Jan 2023 16:47:19 +0100 Message-Id: <20230116154855.005915644@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154847.246743274@linuxfoundation.org> References: <20230116154847.246743274@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yang Yingliang [ Upstream commit 39c1eb6fcbae8ce9bb71b2ac5cb609355a2b181b ] 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: 9238f36a5a50 ("Bluetooth: Add request cmd_complete and cmd_status functions") Signed-off-by: Yang Yingliang Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Sasha Levin --- net/bluetooth/hci_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 3d780220e2d1..e87777255c47 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -4331,7 +4331,7 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status, *req_complete_skb = bt_cb(skb)->hci.req_complete_skb; else *req_complete = bt_cb(skb)->hci.req_complete; - kfree_skb(skb); + dev_kfree_skb_irq(skb); } spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); } -- 2.35.1