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 X-Spam-Level: X-Spam-Status: No, score=-5.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C01EC04A6B for ; Mon, 6 May 2019 15:00:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0ACCF2054F for ; Mon, 6 May 2019 15:00:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557154801; bh=6uI36CmgJ0/VrUNZlPf6wESC6TuMMxW77eB9pdUVEBI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vTY3fnK+hjo57KWp8YNGpiwwlTJqqZl5TTtf0e5NJ0bp6q6OmOiGJyEsVZJPGGcd3 SADBPAbCMqOdjGFnGeab7uE5wscVZunE/Dc98IVGB+yahMTj5bepvsA5W61wsocdtP it45018f203QouGWvA0DitmFBIuNt6MEUgnrqkS4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727204AbfEFOmj (ORCPT ); Mon, 6 May 2019 10:42:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:37594 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728510AbfEFOmi (ORCPT ); Mon, 6 May 2019 10:42:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 60B4821479; Mon, 6 May 2019 14:42:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557153757; bh=6uI36CmgJ0/VrUNZlPf6wESC6TuMMxW77eB9pdUVEBI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JjP5Kk3R9mpZX1x/J3wg16ewNSy3nMKthLBr8vGdwXyVImFYSUTGjg6Z2jqHqRwJ8 972kMMbfXIrQQZKqp43L4RSt1Hxurfmjqs/Rg1NYGZvk/4C2khmWDLAh7RMBmSIxkv qClsB223JzrxGRQ074byLfuqK/fbcUuysLGVTrJI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Parav Pandit , Yuval Avnery , Daniel Jurgens , Leon Romanovsky , Jason Gunthorpe Subject: [PATCH 4.19 85/99] IB/core: Destroy QP if XRC QP fails Date: Mon, 6 May 2019 16:32:58 +0200 Message-Id: <20190506143101.688736872@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190506143053.899356316@linuxfoundation.org> References: <20190506143053.899356316@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yuval Avnery commit 535005ca8e5e71918d64074032f4b9d4fef8981e upstream. The open-coded variant missed destroy of SELinux created QP, reuse already existing ib_detroy_qp() call and use this opportunity to clean ib_create_qp() from double prints and unclear exit paths. Reported-by: Parav Pandit Fixes: d291f1a65232 ("IB/core: Enforce PKey security on QPs") Signed-off-by: Yuval Avnery Reviewed-by: Parav Pandit Reviewed-by: Daniel Jurgens Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/core/verbs.c | 41 +++++++++++++++++++++++----------------- 1 file changed, 24 insertions(+), 17 deletions(-) --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1087,8 +1087,8 @@ struct ib_qp *ib_open_qp(struct ib_xrcd } EXPORT_SYMBOL(ib_open_qp); -static struct ib_qp *ib_create_xrc_qp(struct ib_qp *qp, - struct ib_qp_init_attr *qp_init_attr) +static struct ib_qp *create_xrc_qp(struct ib_qp *qp, + struct ib_qp_init_attr *qp_init_attr) { struct ib_qp *real_qp = qp; @@ -1103,10 +1103,10 @@ static struct ib_qp *ib_create_xrc_qp(st qp = __ib_open_qp(real_qp, qp_init_attr->event_handler, qp_init_attr->qp_context); - if (!IS_ERR(qp)) - __ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp); - else - real_qp->device->destroy_qp(real_qp); + if (IS_ERR(qp)) + return qp; + + __ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp); return qp; } @@ -1137,10 +1137,8 @@ struct ib_qp *ib_create_qp(struct ib_pd return qp; ret = ib_create_qp_security(qp, device); - if (ret) { - ib_destroy_qp(qp); - return ERR_PTR(ret); - } + if (ret) + goto err; qp->real_qp = qp; qp->qp_type = qp_init_attr->qp_type; @@ -1153,8 +1151,15 @@ struct ib_qp *ib_create_qp(struct ib_pd INIT_LIST_HEAD(&qp->sig_mrs); qp->port = 0; - if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) - return ib_create_xrc_qp(qp, qp_init_attr); + if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) { + struct ib_qp *xrc_qp = create_xrc_qp(qp, qp_init_attr); + + if (IS_ERR(xrc_qp)) { + ret = PTR_ERR(xrc_qp); + goto err; + } + return xrc_qp; + } qp->event_handler = qp_init_attr->event_handler; qp->qp_context = qp_init_attr->qp_context; @@ -1181,11 +1186,8 @@ struct ib_qp *ib_create_qp(struct ib_pd if (qp_init_attr->cap.max_rdma_ctxs) { ret = rdma_rw_init_mrs(qp, qp_init_attr); - if (ret) { - pr_err("failed to init MR pool ret= %d\n", ret); - ib_destroy_qp(qp); - return ERR_PTR(ret); - } + if (ret) + goto err; } /* @@ -1198,6 +1200,11 @@ struct ib_qp *ib_create_qp(struct ib_pd device->attrs.max_sge_rd); return qp; + +err: + ib_destroy_qp(qp); + return ERR_PTR(ret); + } EXPORT_SYMBOL(ib_create_qp);