(process_has_exited): Don't call alert_parent if P->p_task is null

(which happens only if this is the stub process in proc_reassign).
This because the parent is uninvolved in the death of stubp.

1 files changed, 2 insertions, 1 deletions

diff --git a/proc/mgt.c b/proc/mgt.c
index 36921f53..8a2bfe4e 100644
--- a/proc/mgt.c
+++ b/proc/mgt.c
@@ -642,7 +642,8 @@ process_has_exited (struct proc *p)
     return;
 
   p->p_waited = 0;
-  alert_parent (p);
+  if (p->p_task != MACH_PORT_NULL)
+    alert_parent (p);
 
   if (p->p_msgport)
     mach_port_deallocate (mach_task_self (), p->p_msgport);