From e1e2be41d6b21f271668a615c3f91caa9962b8dd Mon Sep 17 00:00:00 2001
From: Michael Scire <SciresM@gmail.com>
Date: Thu, 13 Aug 2020 13:30:47 -0700
Subject: [PATCH] kern: fix bug in KScheduler::ClearPreviousThread

---
 libmesosphere/source/kern_k_scheduler.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libmesosphere/source/kern_k_scheduler.cpp b/libmesosphere/source/kern_k_scheduler.cpp
index 320abdcd..a4adf140 100644
--- a/libmesosphere/source/kern_k_scheduler.cpp
+++ b/libmesosphere/source/kern_k_scheduler.cpp
@@ -281,7 +281,8 @@ namespace ams::kern {
             static_assert(std::atomic_ref<KThread *>::is_always_lock_free);
 
             /* Atomically clear the previous thread if it's our target. */
-            prev_thread.compare_exchange_weak(thread, nullptr);
+            KThread *compare = thread;
+            prev_thread.compare_exchange_weak(compare, nullptr);
         }
     }