Index: kernel/generic/src/synch/waitq.c
===================================================================
--- kernel/generic/src/synch/waitq.c	(revision 83789ea27b9086d9e279dc3811225605763d64a3)
+++ kernel/generic/src/synch/waitq.c	(revision c0b54c9d6fa6bb96ee21171d5b8f0c3b58ed0e60)
@@ -97,6 +97,4 @@
 
 	irq_spinlock_lock(&threads_lock, false);
-	if (!thread_exists(thread))
-		goto out;
 
 grab_locks:
@@ -126,5 +124,4 @@
 		thread_ready(thread);
 
-out:
 	irq_spinlock_unlock(&threads_lock, false);
 }