From d5ac07dee8c9337878ed0085e940c86d3f2ade0b Mon Sep 17 00:00:00 2001
From: Xu Yandong <xuyandong2@huawei.com>
Date: Thu, 25 Jul 2019 16:47:50 +0800
Subject: [PATCH] cgroup: cleanup eventParams when virTypedParamsAddULLong
 failed

Function virTypedParamsAddULLong use realloc to gain memory,
and doesn't free it when failed. so we need free eventParams to
prevent a memory leak.

Signed-off-by: Xu Yandong <xuyandong2@huawei.com>
---
 src/qemu/qemu_cgroup.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index ca76c4f..8a00703 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -870,8 +870,11 @@ qemuSetupCpuCgroup(virDomainObjPtr vm)
             if (virTypedParamsAddULLong(&eventParams, &eventNparams,
                                         &eventMaxparams,
                                         VIR_DOMAIN_TUNABLE_CPU_CPU_SHARES,
-                                        val) < 0)
+                                        val) < 0) {
+                if (eventParams)
+                    virTypedParamsFree(eventParams, eventNparams);
                 return -1;
+            }
 
             event = virDomainEventTunableNewFromObj(vm, eventParams, eventNparams);
         }
-- 
2.19.1

