From patchwork Tue Dec 18 19:35:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Pei, Andy" X-Patchwork-Id: 49078 X-Patchwork-Delegate: thomas@monjalon.net 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 ECB0D1B192; Tue, 18 Dec 2018 12:45:30 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 09A841B111 for ; Tue, 18 Dec 2018 12:45:28 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Dec 2018 03:45:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,367,1539673200"; d="scan'208";a="119236375" Received: from dipei-st-npg.sh.intel.com ([10.67.110.220]) by orsmga002.jf.intel.com with ESMTP; 18 Dec 2018 03:45:26 -0800 From: AndyPei To: dev@dpdk.org Cc: rosen.xu@intel.com, tianfei.zhang@intel.com, andy.pei@intel.com Date: Wed, 19 Dec 2018 03:35:21 +0800 Message-Id: <1545161721-382282-1-git-send-email-andy.pei@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1544725998-70149-1-git-send-email-andy.pei@intel.com> References: <1544725998-70149-1-git-send-email-andy.pei@intel.com> Subject: [dpdk-dev] [PATCH v2]/driver/raw/ifpga_rawdev: fix a memory leak bug in ifpga 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 ifpga_rawdev_create() allocate memory for a new rawdev, the original code allocate redundant memory for adapter, which is a member of the rawdev. What is actually necessary is the adapter to be initialized, not memory allocated. fixes:ef1e8ede3da5 cc:rosen.xu@intel.com cc:tianfei.zhang@intel.com Signed-off-by: AndyPei --- drivers/raw/ifpga_rawdev/base/opae_hw_api.c | 32 ++++++++++++++++++++++++----- drivers/raw/ifpga_rawdev/base/opae_hw_api.h | 4 +++- drivers/raw/ifpga_rawdev/ifpga_rawdev.c | 7 +++---- 3 files changed, 33 insertions(+), 10 deletions(-) diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c index a533dfe..50f6438 100644 --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c @@ -303,12 +303,35 @@ static struct opae_adapter_ops *match_ops(struct opae_adapter *adapter) } /** - * opae_adapter_data_alloc - alloc opae_adapter_data data structure + * opae_adapter_init - init opae_adapter data structure + * @adpdate: pointer of opae_adater data structure + * @name: adapter name. + * @data: private data of this adapter. + * + * Return: 0 on success. + */ +int opae_adapter_init(struct opae_adapter *adapter, + const char *name, void *data) +{ + if (!adapter) + return -ENOMEM; + + TAILQ_INIT(&adapter->acc_list); + adapter->data = data; + adapter->name = name; + adapter->ops = match_ops(adapter); + + return 0; +} + +/** + * opae_adapter_alloc - alloc opae_adapter data structure * @name: adapter name. * @data: private data of this adapter. * * Return: opae_adapter on success, otherwise NULL. */ + /**This function will no longer be called. struct opae_adapter *opae_adapter_alloc(const char *name, void *data) { struct opae_adapter *adapter = opae_zmalloc(sizeof(*adapter)); @@ -316,13 +339,12 @@ struct opae_adapter *opae_adapter_alloc(const char *name, void *data) if (!adapter) return NULL; - TAILQ_INIT(&adapter->acc_list); - adapter->data = data; - adapter->name = name; - adapter->ops = match_ops(adapter); + if (opae_adapter_init(adapter, name, data)) + return NULL; return adapter; } +**/ /** * opae_adapter_enumerate - enumerate this adapter diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h index 4bbc9df..ac1941a 100644 --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h @@ -225,7 +225,9 @@ struct opae_adapter { void *opae_adapter_data_alloc(enum opae_adapter_type type); #define opae_adapter_data_free(data) opae_free(data) -struct opae_adapter *opae_adapter_alloc(const char *name, void *data); +int opae_adapter_init(struct opae_adapter *adapter, + const char *name, void *data); +//struct opae_adapter *opae_adapter_alloc(const char *name, void *data); #define opae_adapter_free(adapter) opae_free(adapter) int opae_adapter_enumerate(struct opae_adapter *adapter); diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c index 32e318f..d433091 100644 --- a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c @@ -409,9 +409,10 @@ data->device_id = pci_dev->id.device_id; data->vendor_id = pci_dev->id.vendor_id; + adapter = rawdev->dev_private; /* create a opae_adapter based on above device data */ - adapter = opae_adapter_alloc(pci_dev->device.name, data); - if (!adapter) { + ret = opae_adapter_init(adapter, pci_dev->device.name, data); + if (ret) { ret = -ENOMEM; goto free_adapter_data; } @@ -420,8 +421,6 @@ rawdev->device = &pci_dev->device; rawdev->driver_name = pci_dev->device.driver->name; - rawdev->dev_private = adapter; - /* must enumerate the adapter before use it */ ret = opae_adapter_enumerate(adapter); if (ret)