Input: Improve Controller Interface devices threading

This specific issue was already addressed by https://github.com/dolphin-emu/dolphin/pull/11635
though I felt like there was something more we could do, and wasn't too happy with the
likelihood of devices update calls being skipped (due to `m_devices_population_mutex` being locked).

2 files changed, 4 insertions, 2 deletions

diff --git a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
index 82769cb4f4..ebe79f8984 100644
--- a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
@@ -264,7 +264,7 @@ std::string Device::GetSource() const
   return "XInput";
 }
 
-void Device::UpdateInput()
+Core::DeviceRemoval Device::UpdateInput()
 {
   PXInputGetState(m_index, &m_state_in);
 
@@ -286,6 +286,8 @@ void Device::UpdateInput()
       break;
     }
   }
+
+  return Core::DeviceRemoval::Keep;
 }
 
 void Device::UpdateMotors()
diff --git a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h
index 1673f795ed..95fe6a3c6f 100644
--- a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h
+++ b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h
@@ -33,7 +33,7 @@ public:
   std::optional<int> GetPreferredId() const override;
   int GetSortPriority() const override { return -2; }
 
-  void UpdateInput() override;
+  Core::DeviceRemoval UpdateInput() override;
 
   void UpdateMotors();