From patchwork Thu Apr 25 12:48:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herakliusz Lipiec X-Patchwork-Id: 53079 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id A575E1B592; Thu, 25 Apr 2019 14:47:44 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id CBB871B590 for ; Thu, 25 Apr 2019 14:47:42 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Apr 2019 05:47:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,393,1549958400"; d="scan'208";a="145632751" Received: from silpixa00399499.ir.intel.com (HELO silpixa00399499.ger.corp.intel.com) ([10.237.222.133]) by orsmga003.jf.intel.com with ESMTP; 25 Apr 2019 05:47:40 -0700 From: Herakliusz Lipiec To: Cc: dev@dpdk.org, anatoly.burakov@intel.com, Herakliusz Lipiec Date: Thu, 25 Apr 2019 13:48:15 +0100 Message-Id: <20190425124817.28409-1-herakliusz.lipiec@intel.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190425114324.611-1-herakliusz.lipiec@intel.com> References: <20190425114324.611-1-herakliusz.lipiec@intel.com> Subject: [dpdk-dev] [PATCH v4 0/2] ipc: fix possible memleaks X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" When sending multiple requests, rte_mp_request_sync can succeed sending a few of those requests, but then fail on a later one and in the end return with rc=-1. The upper layers - e.g. device hotplug - currently handles this case as if no messages were sent and no memory for response buffers was allocated, which is not true. Fixed by always initializing message buffer to NULL and calling free everytime rte_mp_request_sync is used. v2: - resending as patchset to make it easier to review it. - changed commit message as requested. - added bugzilla id. Bugzilla ID: 228 v3: - rework of the patchset - caller is no longer responsible for freeing buffers on failure - caller still has to free response buffers on success v4: - fixed checkpatch issues Herakliusz Lipiec (2): ipc: fix rte_mp_request_sync memleak ipc: fix tap pmd memleak drivers/net/tap/rte_eth_tap.c | 2 +- lib/librte_eal/common/eal_common_proc.c | 22 +++++++++++++++------- 2 files changed, 16 insertions(+), 8 deletions(-)