Fix a crash that can be caused by a CLONE_DETACHED thread.
	Author: Ingo Molnar <mingo@elte.hu>

--- linux/kernel/exit.c.orig	Mon Sep  9 14:06:05 2002
+++ linux/kernel/exit.c	Mon Sep  9 14:06:25 2002
@@ -416,7 +416,7 @@
 	 *	
 	 */
 	
-	if(current->exit_signal != SIGCHLD &&
+	if(current->exit_signal != SIGCHLD && current->exit_signal != -1 &&
 	    ( current->parent_exec_id != t->self_exec_id  ||
 	      current->self_exec_id != current->parent_exec_id) 
 	    && !capable(CAP_KILL))