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 64286C4167B for ; Wed, 28 Dec 2022 16:10:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234358AbiL1QKl (ORCPT ); Wed, 28 Dec 2022 11:10:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234545AbiL1QKA (ORCPT ); Wed, 28 Dec 2022 11:10:00 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8043A193D5 for ; Wed, 28 Dec 2022 08:08:49 -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 ams.source.kernel.org (Postfix) with ESMTPS id C89F7B81889 for ; Wed, 28 Dec 2022 16:08:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13B7BC433EF; Wed, 28 Dec 2022 16:08:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672243715; bh=K3rmuZX1b5lD6E0U3TzoMByv+RHDICatYQ0mM9IeOLI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qpe1Fx07dwRv0Ow3FST/N1A/aVUXJp86QsTDqMMfmUgDSiJRjcAQsp0cGJNHmQ/1I APEW+bOnXgdylZ22JCl8eUqKBOC7BwwlK7qVC0br+PPbhmkiptrkVPTFrwnIAhtZLA qpOOkOyLF7as/ZXrWxzLt/dBKtj4yGWAJDw8cqT0= 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 6.0 0543/1073] Bluetooth: btusb: dont call kfree_skb() under spin_lock_irqsave() Date: Wed, 28 Dec 2022 15:35:31 +0100 Message-Id: <20221228144342.804939707@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144328.162723588@linuxfoundation.org> References: <20221228144328.162723588@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 b15a6bd3c80c77faec8317319b97f976b1a08332 ] 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: 803b58367ffb ("Bluetooth: btusb: Implement driver internal packet reassembly") Signed-off-by: Yang Yingliang Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Sasha Levin --- drivers/bluetooth/btusb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 882b5893f910..a132e7aba605 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -788,13 +788,13 @@ static inline void btusb_free_frags(struct btusb_data *data) spin_lock_irqsave(&data->rxlock, flags); - kfree_skb(data->evt_skb); + dev_kfree_skb_irq(data->evt_skb); data->evt_skb = NULL; - kfree_skb(data->acl_skb); + dev_kfree_skb_irq(data->acl_skb); data->acl_skb = NULL; - kfree_skb(data->sco_skb); + dev_kfree_skb_irq(data->sco_skb); data->sco_skb = NULL; spin_unlock_irqrestore(&data->rxlock, flags); -- 2.35.1