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From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>, <david.marchand@redhat.com>
Cc: <jerry.lilijun@huawei.com>, <xudingke@huawei.com>,
	Yunjian Wang <wangyunjian@huawei.com>, <stable@dpdk.org>
Subject: [dpdk-stable] [dpdk-dev] [PATCH v2] bus/fslmc: fix memory leak in secondary process
Date: Fri, 17 Jul 2020 18:50:17 +0800
Message-ID: <1594983017-21936-1-git-send-email-wangyunjian@huawei.com> (raw)
In-Reply-To: <c953585f981d443a42b24e284a48eed8a8450009.1594270224.git.wangyunjian@huawei.com>

From: Yunjian Wang <wangyunjian@huawei.com>

In fslmc_process_mcp(), we allocate memory for 'dev_name' but not
released before return in secondary process. And it is not used
since commit a69f79300262 ("bus/fslmc: support multi VFIO group"),
so it can be removed.

Fixes: e55d0494ab98 ("bus/fslmc: support secondary process")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
v2:
* Remove unused dev_name suggested by David Marchand
---
 drivers/bus/fslmc/fslmc_vfio.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index efe2c43d3..9134ec552 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -739,7 +739,6 @@ fslmc_process_mcp(struct rte_dpaa2_device *dev)
 {
 	int ret;
 	intptr_t v_addr;
-	char *dev_name = NULL;
 	struct fsl_mc_io dpmng  = {0};
 	struct mc_version mc_ver_info = {0};
 
@@ -750,13 +749,6 @@ fslmc_process_mcp(struct rte_dpaa2_device *dev)
 		goto cleanup;
 	}
 
-	dev_name = strdup(dev->device.name);
-	if (!dev_name) {
-		DPAA2_BUS_ERR("Unable to allocate MC device name memory");
-		ret = -ENOMEM;
-		goto cleanup;
-	}
-
 	v_addr = vfio_map_mcp_obj(dev->device.name);
 	if (v_addr == (intptr_t)MAP_FAILED) {
 		DPAA2_BUS_ERR("Error mapping region (errno = %d)", errno);
@@ -793,13 +785,9 @@ fslmc_process_mcp(struct rte_dpaa2_device *dev)
 	}
 	rte_mcp_ptr_list[MC_PORTAL_INDEX] = (void *)v_addr;
 
-	free(dev_name);
 	return 0;
 
 cleanup:
-	if (dev_name)
-		free(dev_name);
-
 	if (rte_mcp_ptr_list) {
 		free(rte_mcp_ptr_list);
 		rte_mcp_ptr_list = NULL;
-- 
2.23.0



  parent reply	other threads:[~2020-07-17 10:50 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-09 10:39 [dpdk-stable] [dpdk-dev] [PATCH 1/1] " wangyunjian
2020-07-09 15:15 ` Hemant Agrawal
2020-07-17  9:20 ` David Marchand
2020-07-17  9:36   ` wangyunjian
2020-07-17 10:50 ` wangyunjian [this message]
2020-07-20  5:28   ` [dpdk-stable] [dpdk-dev] [PATCH v2] " Hemant Agrawal (OSS)
2020-07-21 18:52   ` David Marchand

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