From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id C6F5BA00E6 for ; Wed, 17 Apr 2019 16:41:57 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 930181B6E2; Wed, 17 Apr 2019 16:41:57 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 65AC5397D; Wed, 17 Apr 2019 16:41:55 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Apr 2019 07:41:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,362,1549958400"; d="scan'208";a="135135756" Received: from silpixa00399499.ir.intel.com (HELO silpixa00399499.ger.corp.intel.com) ([10.237.222.133]) by orsmga008.jf.intel.com with ESMTP; 17 Apr 2019 07:41:52 -0700 From: Herakliusz Lipiec To: keith.wiles@intel.com Cc: dev@dpdk.org, Herakliusz Lipiec , rasland@mellanox.com, stable@dpdk.org Date: Wed, 17 Apr 2019 15:42:45 +0100 Message-Id: <20190417144245.23353-1-herakliusz.lipiec@intel.com> X-Mailer: git-send-email 2.17.2 Subject: [dpdk-dev] [PATCH 6/8] ipc: fix tap pmd memleak 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" Content-Type: text/plain; charset="UTF-8" Message-ID: <20190417144245.1txqpDae1pkpjtPeUU7sYfjr8wsVu78m_7cQ4mKFWS4@z> 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 freeing reply message buffers. Fixes: c9aa56edec8e ("net/tap: access primary process queues from secondary") Cc: rasland@mellanox.com Cc: stable@dpdk.org Signed-off-by: Herakliusz Lipiec --- drivers/net/tap/rte_eth_tap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c index e9fda8cf6..d70412d62 100644 --- a/drivers/net/tap/rte_eth_tap.c +++ b/drivers/net/tap/rte_eth_tap.c @@ -2104,6 +2104,7 @@ tap_mp_attach_queues(const char *port_name, struct rte_eth_dev *dev) if (ret < 0) { TAP_LOG(ERR, "Failed to request queues from primary: %d", rte_errno); + free(replies.msgs); return -1; } reply = &replies.msgs[0]; @@ -2119,6 +2120,7 @@ tap_mp_attach_queues(const char *port_name, struct rte_eth_dev *dev) for (queue = 0; queue < reply_param->txq_count; queue++) process_private->txq_fds[queue] = reply->fds[fd_iterator++]; + free(replies.msgs); return 0; } -- 2.17.2