[PATCH] already removed obj is not allowed to acquire job

[Hogan Wang <hogan.wang@xxxxxxxxxx>]

From: Zhuang Shengen <zhuangshengen@xxxxxxxxxx>

a removed vm begin a job may cause unanticipated results.so
add judgement in qemuDomainObjBeginJobInternal to forbid
a removed obj acquire the job

Signed-off-by: Zhuang Shengen <zhuangshengen@xxxxxxxxxx>
Reviewed-by: Hogan Wang <hogan.wang@xxxxxxxxxx>
---
 src/qemu/qemu_domainjob.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/qemu/qemu_domainjob.c b/src/qemu/qemu_domainjob.c
index 50cfc45f5b..246c3208fc 100644
--- a/src/qemu/qemu_domainjob.c
+++ b/src/qemu/qemu_domainjob.c
@@ -880,6 +880,9 @@ qemuDomainObjBeginJobInternal(virQEMUDriverPtr driver,
     if (!nested && !qemuDomainNestedJobAllowed(&priv->job, job))
         goto retry;
 
+    if (obj->removing == 1)
+        goto error;
+
     ignore_value(virTimeMillisNow(&now));
 
     if (job) {
@@ -1011,6 +1014,10 @@ qemuDomainObjBeginJobInternal(virQEMUDriverPtr driver,
                              "due to max_queued limit"));
         }
         ret = -2;
+    } else if (obj->removing == 1) {
+        virReportError(VIR_ERR_OPERATION_FAILED, "%s",
+                       _("cannot acquire job mutex for removed domain"));
+        ret = -2;
     } else {
         virReportSystemError(errno, "%s", _("cannot acquire job mutex"));
     }
-- 
2.23.0