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 E2E8ECDB474 for ; Mon, 23 Oct 2023 11:40:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234275AbjJWLke (ORCPT ); Mon, 23 Oct 2023 07:40:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234256AbjJWLkb (ORCPT ); Mon, 23 Oct 2023 07:40:31 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7198B102 for ; Mon, 23 Oct 2023 04:40:29 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6BD5C433CC; Mon, 23 Oct 2023 11:40:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1698061229; bh=FxBGBMlwWFHnzRR6imJpJinept2aF9H8lnCpCl8mNhA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OEwLMn/jwHsxmPHaksJdAC1tiMa5Nknt/D3kURx1lv1Mx+axLlqHxXfrBjDkkSm/y 1AaW8PgFs+ipWVNmTXZFXXaz+i3sxoFqW1a42z/T44ReTgRFLtlS5JfVTb0bMHnk/E 36qJRuvaq+DpWADvVYJK+cVM//a6X5lFJiI5VRZE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Maurizio Lombardi , Sagi Grimberg , Yi Zhang , Keith Busch Subject: [PATCH 5.15 116/137] nvme-rdma: do not try to stop unallocated queues Date: Mon, 23 Oct 2023 12:57:53 +0200 Message-ID: <20231023104824.691983368@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231023104820.849461819@linuxfoundation.org> References: <20231023104820.849461819@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Maurizio Lombardi commit 3820c4fdc247b6f0a4162733bdb8ddf8f2e8a1e4 upstream. Trying to stop a queue which hasn't been allocated will result in a warning due to calling mutex_lock() against an uninitialized mutex. DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 4 PID: 104150 at kernel/locking/mutex.c:579 Call trace: RIP: 0010:__mutex_lock+0x1173/0x14a0 nvme_rdma_stop_queue+0x1b/0xa0 [nvme_rdma] nvme_rdma_teardown_io_queues.part.0+0xb0/0x1d0 [nvme_rdma] nvme_rdma_delete_ctrl+0x50/0x100 [nvme_rdma] nvme_do_delete_ctrl+0x149/0x158 [nvme_core] Signed-off-by: Maurizio Lombardi Reviewed-by: Sagi Grimberg Tested-by: Yi Zhang Signed-off-by: Keith Busch Signed-off-by: Greg Kroah-Hartman --- drivers/nvme/host/rdma.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -645,6 +645,9 @@ static void __nvme_rdma_stop_queue(struc static void nvme_rdma_stop_queue(struct nvme_rdma_queue *queue) { + if (!test_bit(NVME_RDMA_Q_ALLOCATED, &queue->flags)) + return; + mutex_lock(&queue->queue_lock); if (test_and_clear_bit(NVME_RDMA_Q_LIVE, &queue->flags)) __nvme_rdma_stop_queue(queue);