From 69807dd2088a8576425b569f1919bd8f8bcc379c Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Tue, 29 Mar 2022 15:13:30 -0400
Subject: [PATCH] nvhost_ctrl: Only mark EventState::Busy as BadParameter

Fixes an svc break in Kirby and the Forgotten Land with async GPU enabled.
---
 src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
index f9b82b5047..44c54c665e 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
@@ -134,7 +134,7 @@ NvResult nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector
     }
 
     EventState status = events_interface.status[event_id];
-    const bool bad_parameter = status != EventState::Free && status != EventState::Registered;
+    const bool bad_parameter = status == EventState::Busy;
     if (bad_parameter) {
         std::memcpy(output.data(), &params, sizeof(params));
         return NvResult::BadParameter;