diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index e2302e40b360..6acf8954017c 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -312,8 +312,6 @@ static int ptrace_detach(struct task_struct *child, unsigned int data)
 	if (child->ptrace) {
 		child->exit_code = data;
 		dead = __ptrace_detach(current, child);
-		if (!child->exit_state)
-			wake_up_state(child, TASK_TRACED | TASK_STOPPED);
 	}
 	write_unlock_irq(&tasklist_lock);