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=-5.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 E4C43CA9EC0 for ; Mon, 28 Oct 2019 16:54:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B899521744 for ; Mon, 28 Oct 2019 16:54:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="D809WesW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731722AbfJ1Qyk (ORCPT ); Mon, 28 Oct 2019 12:54:40 -0400 Received: from mail-qt1-f193.google.com ([209.85.160.193]:33129 "EHLO mail-qt1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726234AbfJ1Qyk (ORCPT ); Mon, 28 Oct 2019 12:54:40 -0400 Received: by mail-qt1-f193.google.com with SMTP id y39so10197794qty.0 for ; Mon, 28 Oct 2019 09:54:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=105SgWr73rkCfFA8RUlFBrEu0cuARq8iF9sCl/XmecQ=; b=D809WesW5aARmHw7dbnNX7Sk5rQ2y+pFrIc2DgjXchK/YRj5BW4EiGysxjaZzM0uPR /9aG7XNER9S+OAbZ5TBLAZ62j2BYpV+/FJ5VpVII7Uyr9q684czFkxtfNuJva1Od0PtL IaAF/hWU+LH3F84U64QlD/vTsl3L3/buAJDo/CFJreOCcrl7V+bfOPoDhZTxGKE5qUqj cO40NzBUbRZEsFD+AhKr1UMToVI4plOC/u1pt5dsVoe8rr89XgWEa/KRZdG30obUOUEg UP8KEw7bkB5uEBk381U49i2SvxSmIFLRmICiK/jcJ98HWcSl/W/MzLnh+zDyYFLFRzyT z8Fg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=105SgWr73rkCfFA8RUlFBrEu0cuARq8iF9sCl/XmecQ=; b=Vs6QmaT7i71OZ7eg2oNYJ2JEBm3nnY1LcI11yiwZ4rd8nCLDbh95nIqNxDGtWaNsoH FlJkGbsNofLe9/L3Ne8xovfF/2JAfO5RevOJ34UlTe4mocGFwVL5tL9yiNMxMpv4vyh4 zJJ7mmPQhuTEI7IQnXbACsUpJx4Tv208aJpd/BIu9d/xmAJ8beInCwoM74YXZguO+HTE 1ULLt2xhgxeTiorBc+jQVDN20rgiwdTlyEAYkTPSmFpZd8byrZbTOfJ1hnL2uuCEwC9C qIAQZxUiknZ/GTXedubVntntXx/uAh8Tn1/STRhVEY5JCgCvrzPcHaYznAp8TjSmuKhp Jr5w== X-Gm-Message-State: APjAAAWMxcY+rGD3bFJEzv76GMjJLYKEfXQLfMngMosMOASEg4z4LCyv 1ZOft7xQMiY+rBxSoGHI+okWeQ== X-Google-Smtp-Source: APXvYqw9v0xKTPSNMThwz+LbT4dlwgz4Y5n6SMjm1bFyq2tzXxRqh/VRyPO1cIf4bhhSN+4IX3grvQ== X-Received: by 2002:a0c:870d:: with SMTP id 13mr10631507qvh.245.1572281677617; Mon, 28 Oct 2019 09:54:37 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-142-162-113-180.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.162.113.180]) by smtp.gmail.com with ESMTPSA id u189sm6080976qkd.62.2019.10.28.09.54.36 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 28 Oct 2019 09:54:36 -0700 (PDT) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1iP8Hs-0004oo-Ae; Mon, 28 Oct 2019 13:54:36 -0300 Date: Mon, 28 Oct 2019 13:54:36 -0300 From: Jason Gunthorpe To: Colin King Cc: Lijun Ou , Wei Hu , Doug Ledford , Tao Tian , Leon Romanovsky , Yangyang Li , linux-rdma@vger.kernel.org, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH][next] RDMA/hns: fix memory leak on 'context' on error return path Message-ID: <20191028165436.GA18470@ziepe.ca> References: <20191024131034.19989-1-colin.king@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191024131034.19989-1-colin.king@canonical.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 24, 2019 at 02:10:34PM +0100, Colin King wrote: > From: Colin Ian King > > Currently, the error return path when the call to function > dev->dfx->query_cqc_info fails will leak object 'context'. Fix this > by making the error return path via 'err' return return codes rather > than -EMSGSIZE, set ret appropriately for all error return paths and > for the memory leak now return via 'err' with -EINVAL rather than > just returning without freeing context. > > Addresses-Coverity: ("Resource leak") > Fixes: e1c9a0dc2939 ("RDMA/hns: Dump detailed driver-specific CQ") > Signed-off-by: Colin Ian King > --- > drivers/infiniband/hw/hns/hns_roce_restrack.c | 16 +++++++++++----- > 1 file changed, 11 insertions(+), 5 deletions(-) Applied to for-next with the note to remove the EINVAL return Thanks, Jason