[7/8] ipc: fix net/mlx4 memleak
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Commit Message
When sending multiple requests, rte_mp_request_sync
can succeed sending a few of those requests, but then
fail on a later one and in the end return with rc=-1.
The upper layers - e.g. device hotplug - currently
handles this case as if no messages were sent and no
memory for response buffers was allocated, which is
not true. Fixed by always freeing reply message buffers.
Fixes: 0b259b8e9655 ("net/mlx4: enable secondary process to register DMA memory")
Cc: yskoh@mellanox.com
Signed-off-by: Herakliusz Lipiec <herakliusz.lipiec@intel.com>
---
drivers/net/mlx4/mlx4_mp.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
@@ -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];