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

---
 kapi/kapi/devices/device.hpp          | 6 +++++-
 kapi/kapi/devices/driver_registry.hpp | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)

(limited to 'kapi')

diff --git a/kapi/kapi/devices/device.hpp b/kapi/kapi/devices/device.hpp
index 71856279..573cc0d0 100644
--- a/kapi/kapi/devices/device.hpp
+++ b/kapi/kapi/devices/device.hpp
@@ -5,6 +5,7 @@
 
 #include <kapi/capabilities/facet_id.hpp>
 #include <kapi/devices/driver.hpp>
+#include <kapi/tracked_mutex.hpp>
 
 #include <kstd/memory.hpp>
 #include <kstd/string.hpp>
@@ -119,7 +120,7 @@ namespace kapi::devices
     auto bind_driver(kstd::weak_ptr<struct driver> driver) -> void;
 
     //! Get the driver data associated with this device.
-    [[nodiscard]] auto driver_data() const -> kstd::shared_ptr<void> const &;
+    [[nodiscard]] auto driver_data() const -> kstd::shared_ptr<void>;
 
     //! Set the driver data for this device.
     auto set_driver_data(kstd::shared_ptr<void> data) -> void;
@@ -139,6 +140,9 @@ namespace kapi::devices
     auto set_parent(kstd::weak_ptr<struct bus> parent) -> void;
 
     kstd::string m_name;
+
+    mutable tracked_mutex m_lock{};
+
     kstd::weak_ptr<bus> m_parent;
     devices::state m_state{state::uninitialized};
     kstd::weak_ptr<struct driver> m_driver{};
diff --git a/kapi/kapi/devices/driver_registry.hpp b/kapi/kapi/devices/driver_registry.hpp
index 8a733c90..8af76b01 100644
--- a/kapi/kapi/devices/driver_registry.hpp
+++ b/kapi/kapi/devices/driver_registry.hpp
@@ -3,6 +3,7 @@
 
 #include <kapi/devices/device.hpp>
 #include <kapi/devices/driver.hpp>
+#include <kapi/tracked_mutex.hpp>
 
 #include <kstd/memory.hpp>
 #include <kstd/vector.hpp>
@@ -41,6 +42,8 @@ namespace kapi::devices
     //! Driver matching will occur in driver registration order. The highest priority driver will win.
     auto try_bind(kstd::shared_ptr<device> const & device) -> void;
 
+    mutable tracked_mutex m_lock{};
+
     kstd::vector<kstd::shared_ptr<driver>> m_drivers{};
   };
 
-- 
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