From patchwork Tue Dec 25 14:02:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Pei, Andy" X-Patchwork-Id: 49263 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 40C521B3B7; Tue, 25 Dec 2018 07:13:08 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 523631B201 for ; Tue, 25 Dec 2018 07:13:07 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Dec 2018 22:13:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,395,1539673200"; d="scan'208";a="113105284" Received: from dipei-st-npg.sh.intel.com ([10.67.110.220]) by orsmga003.jf.intel.com with ESMTP; 24 Dec 2018 22:13:05 -0800 From: AndyPei To: dev@dpdk.org Cc: rosen.xu@intel.com, tianfei.zhang@intel.com, andy.pei@intel.com Date: Tue, 25 Dec 2018 22:02:04 +0800 Message-Id: <1545746524-116580-1-git-send-email-andy.pei@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1545161721-382282-1-git-send-email-andy.pei@intel.com> References: <1545161721-382282-1-git-send-email-andy.pei@intel.com> Subject: [dpdk-dev] [PATCH v3]/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. What is different in v3 from v2 is that the adapter is no longer need to be freed. fixes:ef1e8ede3da5 cc: rosen.xu@intel.com cc: tianfei.zhang@intel.com Signed-off-by: AndyPei Acked-by: Rosen Xu --- drivers/raw/ifpga_rawdev/base/opae_hw_api.c | 32 ++++++++++++++++++++++++----- drivers/raw/ifpga_rawdev/base/opae_hw_api.h | 3 ++- drivers/raw/ifpga_rawdev/ifpga_rawdev.c | 12 ++++------- 3 files changed, 33 insertions(+), 14 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..332e0f3 100644 --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h @@ -225,7 +225,8 @@ 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); #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..da772d0 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; } @@ -420,12 +421,10 @@ 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) - goto free_adapter; + goto free_adapter_data; /* get opae_manager to rawdev */ mgr = opae_adapter_get_mgr(adapter); @@ -436,9 +435,6 @@ return ret; -free_adapter: - if (adapter) - opae_adapter_free(adapter); free_adapter_data: if (data) opae_adapter_data_free(data);