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, 8 insertions, 8 deletions

diff --git a/Kernel/Memory/AddressSpace.h b/Kernel/Memory/AddressSpace.h
index 9617a54b1d..5a96e0abb0 100644
--- a/Kernel/Memory/AddressSpace.h
+++ b/Kernel/Memory/AddressSpace.h
@@ -18,13 +18,13 @@ namespace Kernel::Memory {
 
 class AddressSpace {
 public:
-    static KResultOr<NonnullOwnPtr<AddressSpace>> try_create(AddressSpace const* parent);
+    static ErrorOr<NonnullOwnPtr<AddressSpace>> try_create(AddressSpace const* parent);
     ~AddressSpace();
 
     PageDirectory& page_directory() { return *m_page_directory; }
     const PageDirectory& page_directory() const { return *m_page_directory; }
 
-    KResultOr<Region*> add_region(NonnullOwnPtr<Region>);
+    ErrorOr<Region*> add_region(NonnullOwnPtr<Region>);
 
     size_t region_count() const { return m_regions.size(); }
 
@@ -33,17 +33,17 @@ public:
 
     void dump_regions();
 
-    KResult unmap_mmap_range(VirtualAddress, size_t);
+    ErrorOr<void> unmap_mmap_range(VirtualAddress, size_t);
 
-    KResultOr<VirtualRange> try_allocate_range(VirtualAddress, size_t, size_t alignment = PAGE_SIZE);
+    ErrorOr<VirtualRange> try_allocate_range(VirtualAddress, size_t, size_t alignment = PAGE_SIZE);
 
-    KResultOr<Region*> allocate_region_with_vmobject(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, StringView name, int prot, bool shared);
-    KResultOr<Region*> allocate_region(VirtualRange const&, StringView name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
+    ErrorOr<Region*> allocate_region_with_vmobject(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, StringView name, int prot, bool shared);
+    ErrorOr<Region*> allocate_region(VirtualRange const&, StringView name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
     void deallocate_region(Region& region);
     NonnullOwnPtr<Region> take_region(Region& region);
 
-    KResultOr<Region*> try_allocate_split_region(Region const& source_region, VirtualRange const&, size_t offset_in_vmobject);
-    KResultOr<Vector<Region*, 2>> try_split_region_around_range(Region const& source_region, VirtualRange const&);
+    ErrorOr<Region*> try_allocate_split_region(Region const& source_region, VirtualRange const&, size_t offset_in_vmobject);
+    ErrorOr<Vector<Region*, 2>> try_split_region_around_range(Region const& source_region, VirtualRange const&);
 
     Region* find_region_from_range(VirtualRange const&);
     Region* find_region_containing(VirtualRange const&);