From ee0cf632b9018b021c9393b5474a5232948bb2e4 Mon Sep 17 00:00:00 2001
From: Themis Demetriades <td1223@ic.ac.uk>
Date: Sun, 20 Oct 2024 19:45:05 +0100
Subject: [PATCH] Fix attempt to donate priority within lock acquisition w/ S

---
 src/threads/synch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/threads/synch.c b/src/threads/synch.c
index 3495ca8..6d71c83 100644
--- a/src/threads/synch.c
+++ b/src/threads/synch.c
@@ -226,6 +226,7 @@ lock_acquire (struct lock *lock)
   if (lock->holder != NULL)
     {
       t->waiting_lock = lock;
+      donate_priority (t, lock->holder);
     }
 
   sema_down (&lock->semaphore);