[libvirt] [PATCHv3 2/6] libvirt: Increase connection reference count for callbacks

[Peter Krempa]

From: Viktor Mihajlovski <mihajlov at linux.vnet.ibm.com>

By adjusting the reference count of the connection object we
prevent races between callback function and virConnectClose.

Signed-off-by: Viktor Mihajlovski <mihajlov at linux.vnet.ibm.com>
---
 src/libvirt.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libvirt.c b/src/libvirt.c
index 4b9ea75..e9aff8a 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -20186,6 +20186,8 @@ int virConnectRegisterCloseCallback(virConnectPtr conn,
         return -1;
     }

+    virObjectRef(conn);
+
     virMutexLock(&conn->lock);

     virCheckNonNullArgGoto(cb, error);
@@ -20206,6 +20208,7 @@ int virConnectRegisterCloseCallback(virConnectPtr conn,

 error:
     virMutexUnlock(&conn->lock);
+    virObjectUnref(conn);
     virDispatchError(NULL);
     return -1;
 }
@@ -20255,6 +20258,8 @@ int virConnectUnregisterCloseCallback(virConnectPtr conn,

     virMutexUnlock(&conn->lock);

+    virObjectUnref(conn);
+
     return 0;

 error:
-- 
1.8.1.5