From 12002c540c9de2342d829c5b073c65cfb4549b35 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 27 Jul 2026 00:08:49 +0200
Subject: kapi: fix driver registry locking

---
 kernel/kapi/devices/device.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'kernel/kapi/devices/device.cpp')

diff --git a/kernel/kapi/devices/device.cpp b/kernel/kapi/devices/device.cpp
index 2628e4f4..9c2d8d40 100644
--- a/kernel/kapi/devices/device.cpp
+++ b/kernel/kapi/devices/device.cpp
@@ -4,6 +4,7 @@
 #include <kapi/devices/bus.hpp>
 
 #include <kstd/memory.hpp>
+#include <kstd/mutex.hpp>
 #include <kstd/string.hpp>
 
 namespace kapi::devices
@@ -34,36 +35,43 @@ namespace kapi::devices
 
   auto device::parent() const -> kstd::shared_ptr<bus>
   {
+    auto guard = kstd::lock_guard{m_lock};
     return m_parent.lock();
   }
 
   auto device::state() const noexcept -> enum state
   {
+    auto guard = kstd::lock_guard{m_lock};
     return m_state;
   }
 
   auto device::set_state(enum state state) -> void
   {
+    auto guard = kstd::lock_guard{m_lock};
     m_state = state;
   }
 
   auto device::bound_driver() const noexcept -> driver *
   {
+    auto guard = kstd::lock_guard{m_lock};
     return m_driver.lock().get();
   }
 
   auto device::bind_driver(kstd::weak_ptr<struct driver> driver) -> void
   {
+    auto guard = kstd::lock_guard{m_lock};
     m_driver = driver;
   }
 
-  auto device::driver_data() const -> kstd::shared_ptr<void> const &
+  auto device::driver_data() const -> kstd::shared_ptr<void>
   {
+    auto guard = kstd::lock_guard{m_lock};
     return m_driver_data;
   }
 
   auto device::set_driver_data(kstd::shared_ptr<void> data) -> void
   {
+    auto guard = kstd::lock_guard{m_lock};
     m_driver_data = data;
   }
 
@@ -74,6 +82,7 @@ namespace kapi::devices
 
   auto device::set_parent(kstd::weak_ptr<bus> parent) -> void
   {
+    auto guard = kstd::lock_guard{m_lock};
     m_parent = parent;
   }
 
-- 
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