From 177078813b65d62b7eda12edcb605e2cd8fb5444 Mon Sep 17 00:00:00 2001
From: Kawe Mazidjatari <48657826+Mauler125@users.noreply.github.com>
Date: Tue, 16 Jan 2024 20:57:28 +0100
Subject: [PATCH] Tier0: fix CThreadFastMutex bug

Must break if ThreadInterlockedCompareExchange returns null.
---
 r5dev/tier0/threadtools.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/r5dev/tier0/threadtools.cpp b/r5dev/tier0/threadtools.cpp
index 0972a0c3..5a0d0000 100644
--- a/r5dev/tier0/threadtools.cpp
+++ b/r5dev/tier0/threadtools.cpp
@@ -43,7 +43,7 @@ int CThreadFastMutex::Lock(void)
 
 			result = ThreadInterlockedCompareExchange((volatile LONG*)&m_lAddend, 0, 1);
 
-			if (result)
+			if (!result)
 				break;
 
 			if (++cycle > 5)