chore: replace some naked pointers

The coding guidelines explicitly prohibit the use of "naked"/C-style
pointers. However, there were some prominent examples in the kapi and
the core kernel source. This changeset replaces them with the
appropriate smart pointer types.

1 files changed, 15 insertions, 14 deletions

diff --git a/kernel/kapi/devices/driver.tests.cpp b/kernel/kapi/devices/driver.tests.cpp
index ee3fe577..38d07ed9 100644
--- a/kernel/kapi/devices/driver.tests.cpp
+++ b/kernel/kapi/devices/driver.tests.cpp
@@ -36,8 +36,8 @@ namespace
     [[nodiscard]] auto match(kapi::devices::device const & dev, kapi::devices::driver const & drv) const
         -> kstd::result<std::uint32_t> override
     {
-      auto const * signature = dev.facet<controller_signature>();
-      auto const * claim = drv.facet<controller_claim>();
+      auto const signature = dev.facet<controller_signature>();
+      auto const claim = drv.facet<controller_claim>();
       if (!signature || !claim || !std::ranges::contains(claim->supported_names(), signature->controller_name()))
       {
         return kstd::failure(kapi::devices::driver_match_errc::no_match);
@@ -65,11 +65,11 @@ namespace
     }
 
   protected:
-    auto query_facet(kapi::capabilities::facet_id facet) -> void * override
+    auto query_facet(kapi::capabilities::facet_id facet) -> kstd::observer_ptr<void> override
     {
       if (facet == controller_signature::id)
       {
-        return static_cast<controller_signature *>(this);
+        return kstd::make_observer<controller_signature>(this);
       }
       return kapi::devices::bus::query_facet(facet);
     }
@@ -101,11 +101,11 @@ namespace
     }
 
   protected:
-    auto query_facet(kapi::capabilities::facet_id facet) -> void * override
+    auto query_facet(kapi::capabilities::facet_id facet) -> kstd::observer_ptr<void> override
     {
       if (facet == leaf_signature::id)
       {
-        return static_cast<leaf_signature *>(this);
+        return kstd::make_observer<leaf_signature>(this);
       }
       return kapi::devices::device::query_facet(facet);
     }
@@ -123,9 +123,9 @@ namespace
     [[nodiscard]] auto match(kapi::devices::device const & dev, kapi::devices::driver const & drv) const
         -> kstd::result<std::uint32_t> override
     {
-      auto const * ident = dev.facet<leaf_signature>();
-      auto const * claims = drv.facet<leaf_claim>();
-      if (!ident || !claims || !std::ranges::contains(claims->supported_names(), ident->leaf_name()))
+      auto const signature = dev.facet<leaf_signature>();
+      auto const claims = drv.facet<leaf_claim>();
+      if (!signature || !claims || !std::ranges::contains(claims->supported_names(), signature->leaf_name()))
       {
         return kstd::failure(kapi::devices::driver_match_errc::no_match);
       }
@@ -166,11 +166,11 @@ namespace
     }
 
   protected:
-    auto query_facet(kapi::capabilities::facet_id facet) -> void * override
+    auto query_facet(kapi::capabilities::facet_id facet) -> kstd::observer_ptr<void> override
     {
       if (facet == controller_claim::id)
       {
-        return static_cast<controller_claim *>(this);
+        return kstd::make_observer<controller_claim>(this);
       }
 
       return kapi::devices::driver::query_facet(facet);
@@ -198,11 +198,11 @@ namespace
     }
 
   protected:
-    auto query_facet(kapi::capabilities::facet_id facet) -> void * override
+    auto query_facet(kapi::capabilities::facet_id facet) -> kstd::observer_ptr<void> override
     {
       if (facet == leaf_claim::id)
       {
-        return static_cast<leaf_claim *>(this);
+        return kstd::make_observer<leaf_claim>(this);
       }
 
       return kapi::devices::driver::query_facet(facet);
@@ -213,7 +213,8 @@ namespace
 SCENARIO("a bound controller driver can attach a further, independently-typed bus protocol of its own",
          "[devices][driver][stacking]")
 {
-  GIVEN("a controller bus, a controller driver, and a leaf driver, none aware of each other's identification scheme")
+  GIVEN(
+      "a controller bus, a controller driver, and a leaf driver, none aware of each other's signatureification scheme")
   {
     auto outer_bus = kstd::make_shared<controller_bus>("stacking_test_controller_bus");