1 files changed, 10 insertions, 14 deletions

diff --git a/src/Ryujinx.Input/HLE/NpadController.cs b/src/Ryujinx.Input/HLE/NpadController.cs
index 8411c10a..cde20f5d 100644
--- a/src/Ryujinx.Input/HLE/NpadController.cs
+++ b/src/Ryujinx.Input/HLE/NpadController.cs
@@ -203,8 +203,6 @@ namespace Ryujinx.Input.HLE
             new(Key.NumLock,      10),
         };
 
-        private bool _isValid;
-
         private MotionInput _leftMotionInput;
         private MotionInput _rightMotionInput;
 
@@ -222,7 +220,6 @@ namespace Ryujinx.Input.HLE
         {
             State = default;
             Id = null;
-            _isValid = false;
             _cemuHookClient = cemuHookClient;
         }
 
@@ -234,11 +231,10 @@ namespace Ryujinx.Input.HLE
 
             Id = config.Id;
             _gamepad = GamepadDriver.GetGamepad(Id);
-            _isValid = _gamepad != null;
 
             UpdateUserConfiguration(config);
 
-            return _isValid;
+            return _gamepad != null;
         }
 
         public void UpdateUserConfiguration(InputConfig config)
@@ -262,10 +258,7 @@ namespace Ryujinx.Input.HLE
 
             _config = config;
 
-            if (_isValid)
-            {
-                _gamepad.SetConfiguration(config);
-            }
+            _gamepad?.SetConfiguration(config);
         }
 
         private void UpdateMotionInput(MotionConfigController motionConfig)
@@ -282,18 +275,21 @@ namespace Ryujinx.Input.HLE
 
         public void Update()
         {
-            if (_isValid && GamepadDriver != null)
+            // _gamepad may be altered by other threads
+            var gamepad = _gamepad;
+
+            if (gamepad != null && GamepadDriver != null)
             {
-                State = _gamepad.GetMappedStateSnapshot();
+                State = gamepad.GetMappedStateSnapshot();
 
                 if (_config is StandardControllerInputConfig controllerConfig && controllerConfig.Motion.EnableMotion)
                 {
                     if (controllerConfig.Motion.MotionBackend == MotionInputBackendType.GamepadDriver)
                     {
-                        if (_gamepad.Features.HasFlag(GamepadFeaturesFlag.Motion))
+                        if (gamepad.Features.HasFlag(GamepadFeaturesFlag.Motion))
                         {
-                            Vector3 accelerometer = _gamepad.GetMotionData(MotionInputId.Accelerometer);
-                            Vector3 gyroscope = _gamepad.GetMotionData(MotionInputId.Gyroscope);
+                            Vector3 accelerometer = gamepad.GetMotionData(MotionInputId.Accelerometer);
+                            Vector3 gyroscope = gamepad.GetMotionData(MotionInputId.Gyroscope);
 
                             accelerometer = new Vector3(accelerometer.X, -accelerometer.Z, accelerometer.Y);
                             gyroscope = new Vector3(gyroscope.X, -gyroscope.Z, gyroscope.Y);