From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 42F6128FD; Fri, 18 Jan 2019 08:18:25 +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 orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jan 2019 23:18:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,489,1539673200"; d="scan'208";a="127018111" Received: from dipei-st-npg.sh.intel.com ([10.67.110.220]) by orsmga002.jf.intel.com with ESMTP; 17 Jan 2019 23:18:22 -0800 From: Andy Pei To: dev@dpdk.org Cc: andy.pei@intel.com, rosen.xu@intel.com, stable@dpdk.org Date: Fri, 18 Jan 2019 15:16:24 +0800 Message-Id: <1547795784-340613-1-git-send-email-andy.pei@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1547729224-426571-1-git-send-email-andy.pei@intel.com> References: <1547729224-426571-1-git-send-email-andy.pei@intel.com> Subject: [dpdk-dev] [PATCH v2] raw/ifpga: fix a memory leak bug in /driver/raw/ifpga_rawdev 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: , X-List-Received-Date: Fri, 18 Jan 2019 07:18:26 -0000 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 ("raw/ifpga: add Intel FPGA bus rawdev driver") Cc: andy.pei@intel.com Cc: rosen.xu@intel.com Cc: stable@dpdk.org Signed-off-by: Andy Pei --- v2: * Remove [DPDK] prefix. * Cc: stable@dpdk.org drivers/raw/ifpga_rawdev/base/opae_hw_api.c | 14 +++++++------- drivers/raw/ifpga_rawdev/base/opae_hw_api.h | 3 ++- drivers/raw/ifpga_rawdev/ifpga_rawdev.c | 12 ++++-------- 3 files changed, 13 insertions(+), 16 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..1541b67 100644 --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c @@ -303,25 +303,25 @@ 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 + * @adapter: pointer of opae_adapter data structure * @name: adapter name. * @data: private data of this adapter. * - * Return: opae_adapter on success, otherwise NULL. + * Return: 0 on success. */ -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 *adapter = opae_zmalloc(sizeof(*adapter)); - if (!adapter) - return NULL; + return -ENOMEM; TAILQ_INIT(&adapter->acc_list); adapter->data = data; adapter->name = name; adapter->ops = match_ops(adapter); - return adapter; + return 0; } /** 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); -- 1.8.3.1