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 700F7C7EE26 for ; Mon, 8 May 2023 10:12:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234221AbjEHKMk (ORCPT ); Mon, 8 May 2023 06:12:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234236AbjEHKMb (ORCPT ); Mon, 8 May 2023 06:12:31 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 960671A110 for ; Mon, 8 May 2023 03:12:18 -0700 (PDT) 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 2E3A7623E5 for ; Mon, 8 May 2023 10:12:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46DB9C433EF; Mon, 8 May 2023 10:12:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683540737; bh=1gHjVbiwzno4iGhhE6/DY9gqDFfRJvPcx5ZnRCQCNOs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HCgh8YWoUAhvSpsTJvtd1J1tJZ8nazuUQWBAefjVO2PjXstuh0vO//n5zrT6jITlA KeadSSCEDjh685FxgAKFU/QxtWmxXkgRKcmivswOd7prlQzY+JlvCA9lIq40/PtVCe s8UFLTw/A9V5Z/kmTiFugDsN0/fwSyM2EVuuZtkI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Natalia Petrova , Leon Romanovsky , Sasha Levin Subject: [PATCH 6.1 478/611] RDMA/rdmavt: Delete unnecessary NULL check Date: Mon, 8 May 2023 11:45:20 +0200 Message-Id: <20230508094437.623264743@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094421.513073170@linuxfoundation.org> References: <20230508094421.513073170@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: Natalia Petrova [ Upstream commit b73a0b80c69de77d8d4942abb37066531c0169b2 ] There is no need to check 'rdi->qp_dev' for NULL. The field 'qp_dev' is created in rvt_register_device() which will fail if the 'qp_dev' allocation fails in rvt_driver_qp_init(). Overwise this pointer doesn't changed and passed to rvt_qp_exit() by the next step. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 0acb0cc7ecc1 ("IB/rdmavt: Initialize and teardown of qpn table") Signed-off-by: Natalia Petrova Link: https://lore.kernel.org/r/20230303124408.16685-1-n.petrova@fintech.ru Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/sw/rdmavt/qp.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c index 3acab569fbb94..2bdc4486c3daa 100644 --- a/drivers/infiniband/sw/rdmavt/qp.c +++ b/drivers/infiniband/sw/rdmavt/qp.c @@ -464,8 +464,6 @@ void rvt_qp_exit(struct rvt_dev_info *rdi) if (qps_inuse) rvt_pr_err(rdi, "QP memory leak! %u still in use\n", qps_inuse); - if (!rdi->qp_dev) - return; kfree(rdi->qp_dev->qp_table); free_qpn_table(&rdi->qp_dev->qpn_table); -- 2.39.2