From ece5287843403da0bdaeccef872f771fac61967a Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Sun, 3 Nov 2019 04:25:41 -0500
Subject: [PATCH] kernel: readable_event: Signal only once.

---
 src/core/hle/kernel/readable_event.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/core/hle/kernel/readable_event.cpp b/src/core/hle/kernel/readable_event.cpp
index 7c291b426..d8ac97aa1 100644
--- a/src/core/hle/kernel/readable_event.cpp
+++ b/src/core/hle/kernel/readable_event.cpp
@@ -23,8 +23,10 @@ void ReadableEvent::Acquire(Thread* thread) {
 }
 
 void ReadableEvent::Signal() {
-    signaled = true;
-    WakeupAllWaitingThreads();
+    if (!signaled) {
+        signaled = true;
+        WakeupAllWaitingThreads();
+    };
 }
 
 void ReadableEvent::Clear() {