[PATCH] m68k ptrace

M68k: Use ptrace_check_attach instead of doing the checks ourselves (from
Andreas Schwab).

arch/m68k/kernel/ptrace.c

@@ -135,14 +135,9 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
 		ret = ptrace_attach(child);
 		goto out_tsk;
 	}
-	ret = -ESRCH;
-	if (!(child->ptrace & PT_PTRACED))
-		goto out_tsk;
-	if (child->state != TASK_STOPPED) {
-		if (request != PTRACE_KILL)
-			goto out_tsk;
-	}
-	if (child->parent != current)
+
+	ret = ptrace_check_attach(child, request == PTRACE_KILL);
+	if (ret < 0)
 		goto out_tsk;
 
 	switch (request) {