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 CEC776FA0 for ; Mon, 16 Jan 2023 16:45:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 41546C433D2; Mon, 16 Jan 2023 16:45:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673887505; bh=9NL8DQOAMgPWBDbmlJLuUOVKpkXxmnqyFmvQ9X4t7RE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0iaZM3HWbkP5GZRzG9PqEZcTxblSBta9LMhxGxVjNxrIbjT75MMO0mxdv5sTRqtzg 78sqpHu/iALK1+25GH309G365BIT5FUVvXn16UfzAq1oZHQm1tvksq5O6BKim8b5Kz Bo45M8igXkSywHm2kExUnalh6Bm1nIDDL0ibiIdQ= 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 4.19 175/521] Bluetooth: hci_h5: dont call kfree_skb() under spin_lock_irqsave() Date: Mon, 16 Jan 2023 16:47:17 +0100 Message-Id: <20230116154854.923853184@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 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: Yang Yingliang [ Upstream commit 383630cc6758d619874c2e8bb2f68a61f3f9ef6e ] 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 Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Sasha Levin --- 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 79b96251de80..29c80e2acb05 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -311,7 +311,7 @@ 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)) -- 2.35.1