[dpdk-dev] [PATCH v2] bus/fslmc: fix memory leak in secondary process

[wangyunjian]

From: Yunjian Wang <wangyunjian at 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 at dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian at 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