vz: fix raise in vzDomainBlock

Put domain access after acquiring job condition, otherwise
another job can change it meanwhile.
Signed-off-by: NKonstantin Neumoin <kneumoin@virtuozzo.com>
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

src/vz/vz_driver.c

@@ -3977,12 +3977,6 @@ vzDomainBlockResize(virDomainPtr domain,
         size /= 1024;
     size /= 1024;
 
-    if (!(disk = virDomainDiskByName(dom->def, path, false))) {
-        virReportError(VIR_ERR_INVALID_ARG,
-                       _("invalid path: %s"), path);
-        goto cleanup;
-    }
-
     if (vzDomainObjBeginJob(dom) < 0)
         goto cleanup;
     job = true;
@@ -3996,6 +3990,12 @@ vzDomainBlockResize(virDomainPtr domain,
         goto cleanup;
     }
 
+    if (!(disk = virDomainDiskByName(dom->def, path, false))) {
+        virReportError(VIR_ERR_INVALID_ARG,
+                       _("invalid path: %s"), path);
+        goto cleanup;
+    }
+
     ret = prlsdkResizeImage(dom, disk, size);
 
  cleanup: