From f54e09351a967da21f863fd2d3b17ffd24d3ee87 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Sun, 12 Jul 2026 15:24:40 +0200
Subject: kernel: integrate kstd system_error facility

---
 kapi/kapi/filesystem.hpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'kapi')

diff --git a/kapi/kapi/filesystem.hpp b/kapi/kapi/filesystem.hpp
index 3bd9aaf4..02f174e9 100644
--- a/kapi/kapi/filesystem.hpp
+++ b/kapi/kapi/filesystem.hpp
@@ -1,9 +1,11 @@
 #ifndef TEACHOS_KAPI_FILESYSTEM_HPP
 #define TEACHOS_KAPI_FILESYSTEM_HPP
 
+#include <kstd/system_error.hpp>
 #include <kstd/unikstd.h>
 
 #include <cstddef>
+#include <expected>
 #include <string_view>
 
 namespace kapi::filesystem
@@ -39,7 +41,7 @@ namespace kapi::filesystem
   @return A file descriptor on success, -1 on failure.
   @qualifier kernel-defined
   */
-  auto open(std::string_view path) -> kstd::ssize_t;
+  auto open(std::string_view path) -> std::expected<std::size_t, kstd::error_code>;
 
   /**
   @brief Closes a @p file_descriptor.
-- 
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