[dpdk-dev] [PATCH v2] eal: fix IPC memleak on device hotplug

[Darek Stojaczyk <dariusz.stojaczyk@intel.com>]

rte_mp_request_sync() says that the caller is responsible
for freeing one of its parameters afterwards. EAL didn't
do that, causing a memory leak.

Fixes: 244d5130719c ("eal: enable hotplug on multi-process")
Cc: qi.z.zhang@intel.com
Cc: anatoly.burakov@intel.com

Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
---
 lib/librte_eal/common/hotplug_mp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/librte_eal/common/hotplug_mp.c b/lib/librte_eal/common/hotplug_mp.c
index 84f59d95b..b68e4cabb 100644
--- a/lib/librte_eal/common/hotplug_mp.c
+++ b/lib/librte_eal/common/hotplug_mp.c
@@ -355,6 +355,7 @@ int eal_dev_hotplug_request_to_primary(struct eal_dev_mp_req *req)
 	resp = (struct eal_dev_mp_req *)mp_reply.msgs[0].param;
 	req->result = resp->result;
 
+	free(mp_reply.msgs);
 	return ret;
 }
 
@@ -379,6 +380,7 @@ int eal_dev_hotplug_request_to_secondary(struct eal_dev_mp_req *req)
 
 	if (mp_reply.nb_sent != mp_reply.nb_received) {
 		RTE_LOG(ERR, EAL, "not all secondary reply\n");
+		free(mp_reply.msgs);
 		return -1;
 	}
 
@@ -397,6 +399,7 @@ int eal_dev_hotplug_request_to_secondary(struct eal_dev_mp_req *req)
 		}
 	}
 
+	free(mp_reply.msgs);
 	return 0;
 }
 
-- 
2.17.1