Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>

We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace!
This was a slightly tedious refactoring that took a long time, so it's
not unlikely that some bugs crept in.

Nevertheless, it does pass basic functionality testing, and it's just
real nice to finally see the same pattern in all contexts. :^)

1 files changed, 7 insertions, 7 deletions

diff --git a/Kernel/FileSystem/FIFO.h b/Kernel/FileSystem/FIFO.h
index 6352360863..9c20a81452 100644
--- a/Kernel/FileSystem/FIFO.h
+++ b/Kernel/FileSystem/FIFO.h
@@ -24,13 +24,13 @@ public:
         Writer
     };
 
-    static KResultOr<NonnullRefPtr<FIFO>> try_create(UserID);
+    static ErrorOr<NonnullRefPtr<FIFO>> try_create(UserID);
     virtual ~FIFO() override;
 
     UserID uid() const { return m_uid; }
 
-    KResultOr<NonnullRefPtr<OpenFileDescription>> open_direction(Direction);
-    KResultOr<NonnullRefPtr<OpenFileDescription>> open_direction_blocking(Direction);
+    ErrorOr<NonnullRefPtr<OpenFileDescription>> open_direction(Direction);
+    ErrorOr<NonnullRefPtr<OpenFileDescription>> open_direction_blocking(Direction);
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Woverloaded-virtual"
@@ -40,12 +40,12 @@ public:
 
 private:
     // ^File
-    virtual KResultOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
-    virtual KResultOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
-    virtual KResult stat(::stat&) const override;
+    virtual ErrorOr<size_t> write(OpenFileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
+    virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
+    virtual ErrorOr<void> stat(::stat&) const override;
     virtual bool can_read(const OpenFileDescription&, size_t) const override;
     virtual bool can_write(const OpenFileDescription&, size_t) const override;
-    virtual KResultOr<NonnullOwnPtr<KString>> pseudo_path(const OpenFileDescription&) const override;
+    virtual ErrorOr<NonnullOwnPtr<KString>> pseudo_path(const OpenFileDescription&) const override;
     virtual StringView class_name() const override { return "FIFO"sv; }
     virtual bool is_fifo() const override { return true; }