[libvirt] [PATCH] qemuAgentDispose: Reset lastError

[Wangyufei (James)]

When an error occurred in qemuAgentIO, it will be saved in mon->lastError,
but it will not be freed at last.
So I add the following code to fix it.

==22219== 54 bytes in 1 blocks are definitely lost in loss record 982 of 1,379
==22219==    at 0x4C26B9B: malloc (vg_replace_malloc.c:263)
==22219==    by 0x8520521: strdup (in /lib64/libc-2.11.3.so)
==22219==    by 0x52E99CB: virStrdup (virstring.c:554)
==22219==    by 0x52B44C4: virCopyError (virerror.c:195)
==22219==    by 0x52B5123: virCopyLastError (virerror.c:312)
==22219==    by 0x10905877: qemuAgentIO (qemu_agent.c:660)
==22219==    by 0x52B6122: virEventPollDispatchHandles (vireventpoll.c:501)
==22219==    by 0x52B7AEA: virEventPollRunOnce (vireventpoll.c:647)
==22219==    by 0x52B5C1B: virEventRunDefaultImpl (virevent.c:274)
==22219==    by 0x54181FD: virNetServerRun (virnetserver.c:1112)
==22219==    by 0x11EF4D: main (libvirtd.c:1513)

Signed-off-by: Zhou Yimin <zhouyimin at huawei.com>
---
 src/qemu/qemu_agent.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c
index 2cd0ccc..4a3820c 100644
--- a/src/qemu/qemu_agent.c
+++ b/src/qemu/qemu_agent.c
@@ -161,6 +161,7 @@ static void qemuAgentDispose(void *obj)
         (mon->cb->destroy)(mon, mon->vm);
     virCondDestroy(&mon->notify);
     VIR_FREE(mon->buffer);
+    virResetError(&mon->lastError);
 }
 
 static int
-- 
1.7.3.1.msysgit.0

Best Regards,
-WangYufei