From patchwork Sun Aug 18 18:28:57 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yann Droneaud X-Patchwork-Id: 2846213 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 7AF20BF546 for ; Sun, 18 Aug 2013 18:35:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9DC842020E for ; Sun, 18 Aug 2013 18:35:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 96C3520201 for ; Sun, 18 Aug 2013 18:35:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754481Ab3HRSfN (ORCPT ); Sun, 18 Aug 2013 14:35:13 -0400 Received: from smtp1-g21.free.fr ([212.27.42.1]:55985 "EHLO smtp1-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754427Ab3HRSfN (ORCPT ); Sun, 18 Aug 2013 14:35:13 -0400 Received: from localhost.localdomain (unknown [IPv6:2a01:e35:2e9f:6ac0:f909:bc73:7b7d:1daf]) by smtp1-g21.free.fr (Postfix) with ESMTP id 6FEAA940133; Sun, 18 Aug 2013 20:35:04 +0200 (CEST) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by localhost.localdomain (8.14.7/8.14.7) with ESMTP id r7IITUXe032045; Sun, 18 Aug 2013 20:29:30 +0200 Received: (from ydroneaud@localhost) by localhost.localdomain (8.14.7/8.14.7/Submit) id r7IITUmM032044; Sun, 18 Aug 2013 20:29:30 +0200 From: Yann Droneaud To: linux-rdma@vger.kernel.org Cc: Yann Droneaud Subject: [PATCH 21/22] uverbs: fix call to INIT_UDATA with no output buffer Date: Sun, 18 Aug 2013 20:28:57 +0200 Message-Id: <63bb67dce64ea3eb9583cd84e0275fa1b49d8b23.1376847403.git.ydroneaud@opteya.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-9.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When using INIT_UDATA() with an output buffer set to NULL, there's no space available, so output buffer length should be set to 0. Signed-off-by: Yann Droneaud Link: http://mid.gmane.org/cover.1376847403.git.ydroneaud@opteya.com --- drivers/infiniband/core/uverbs_cmd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 5981604..df50e81 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -1990,7 +1990,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, return -EFAULT; INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd, - out_len); + 0); attr = kmalloc(sizeof *attr, GFP_KERNEL); if (!attr) @@ -2927,7 +2927,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, return -EFAULT; INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd, - out_len); + 0); srq = idr_read_srq(cmd.srq_handle, file->ucontext); if (!srq)