[dpdk-dev] [PATCH v2 7/8] ipc: fix net/mlx4 memleak

[Herakliusz Lipiec]

When sending synchronous IPC requests, the caller must free the response 
buffer even if the request returned failure. Fix the code to correctly 
use the IPC API.

Bugzilla ID:228
Fixes: 0b259b8e9655 ("net/mlx4: enable secondary process to register DMA memory")
Cc: yskoh at mellanox.com
Signed-off-by: Herakliusz Lipiec <herakliusz.lipiec at intel.com>
---
 drivers/net/mlx4/mlx4_mp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx4/mlx4_mp.c b/drivers/net/mlx4/mlx4_mp.c
index 183622453..f4cff7486 100644
--- a/drivers/net/mlx4/mlx4_mp.c
+++ b/drivers/net/mlx4/mlx4_mp.c
@@ -255,6 +255,7 @@ mlx4_mp_req_mr_create(struct rte_eth_dev *dev, uintptr_t addr)
 	if (ret) {
 		ERROR("port %u request to primary process failed",
 		      dev->data->port_id);
+		free(mp_rep.msgs);
 		return -rte_errno;
 	}
 	assert(mp_rep.nb_received == 1);
@@ -292,7 +293,8 @@ mlx4_mp_req_verbs_cmd_fd(struct rte_eth_dev *dev)
 	if (ret) {
 		ERROR("port %u request to primary process failed",
 		      dev->data->port_id);
-		return -rte_errno;
+		ret = -rte_errno;
+		goto exit;
 	}
 	assert(mp_rep.nb_received == 1);
 	mp_res = &mp_rep.msgs[0];
-- 
2.17.2