diff --git a/package/kernel/lantiq/ltq-adsl/patches/140-linux_3.18.patch b/package/kernel/lantiq/ltq-adsl/patches/140-linux_3.18.patch
index 80f085492c4..1d1e5669ac0 100644
--- a/package/kernel/lantiq/ltq-adsl/patches/140-linux_3.18.patch
+++ b/package/kernel/lantiq/ltq-adsl/patches/140-linux_3.18.patch
@@ -1,6 +1,6 @@
 --- a/src/include/drv_dsl_cpe_os_linux.h
 +++ b/src/include/drv_dsl_cpe_os_linux.h
-@@ -214,12 +214,35 @@ static inline int dsl_mutex_lock(struct 
+@@ -214,12 +214,25 @@ static inline int dsl_mutex_lock(struct 
  #define DSL_DRV_MUTEX_LOCK(id)               down_interruptible(&(id))
  #define DSL_DRV_MUTEX_UNLOCK(id)             up(&(id))
  #endif
@@ -8,21 +8,11 @@
 +static inline long
 +ugly_hack_sleep_on_timeout(wait_queue_head_t *q, long timeout)
 +{
-+	unsigned long flags;
-+	wait_queue_t wait;
-+
-+	init_waitqueue_entry(&wait, current);
-+
-+	__set_current_state(TASK_INTERRUPTIBLE);
-+	spin_lock_irqsave(&q->lock, flags);
-+	__add_wait_queue(q, &wait);
-+	spin_unlock(&q->lock);
++	DEFINE_WAIT(wait);
 +
++	prepare_to_wait(q, &wait, TASK_INTERRUPTIBLE);
 +	timeout = schedule_timeout(timeout);
-+
-+	spin_lock_irq(&q->lock);
-+	__remove_wait_queue(q, &wait);
-+	spin_unlock_irqrestore(&q->lock, flags);
++	finish_wait(q, &wait);
 +
 +	return timeout;
 +}