add descriptions, some refactoring

1 files changed, 9 insertions, 10 deletions

diff --git a/kernel/src/filesystem/vfs.cpp b/kernel/src/filesystem/vfs.cpp
index f9a051a..2578036 100644
--- a/kernel/src/filesystem/vfs.cpp
+++ b/kernel/src/filesystem/vfs.cpp
@@ -21,6 +21,11 @@ namespace kernel::filesystem
   namespace
   {
     constinit auto static active_vfs = std::optional<vfs>{};
+
+    // Error codes
+    constexpr int INVALID_PATH = -1;
+    constexpr int MOUNT_POINT_NOT_FOUND = -2;
+    constexpr int FILESYSTEM_NULL = -3;
   }  // namespace
 
   auto vfs::init() -> void
@@ -79,18 +84,12 @@ namespace kernel::filesystem
   {
     if (!filesystem)
     {
-      return -1;  // TODO BA-FS26 panic or errorcode?
-    }
-
-    if (path.empty() || path.front() != '/')
-    {
-      return -1;  // TODO BA-FS26 panic or errorcode?
+      return FILESYSTEM_NULL;
     }
 
-    // TODO BA-FS26 better path validation
-    if ((path.size() > 1 && path.back() == '/'))
+    if (path.empty() || path.front() != '/' || (path.size() > 1 && path.back() == '/'))
     {
-      return -1;  // TODO BA-FS26 panic or errorcode?
+      return INVALID_PATH;
     }
 
     if (auto mount_point_dentry = resolve_path(path))
@@ -99,7 +98,7 @@ namespace kernel::filesystem
       return 0;
     }
 
-    return -1;
+    return MOUNT_POINT_NOT_FOUND;
   }
 
   auto vfs::do_mount_internal(std::string_view path, kstd::shared_ptr<dentry> const & mount_point_dentry,