Kernel: Decorate KResultOr with [[nodiscard]] to catch misbehaving callers

The [[nodiscard]] decorator enables us to have the compile emit a
warning anytime the decorated type or function's return value isn't
observed. It's very useful for catching error checking bugs in systems
which use C style error handling.

1 files changed, 1 insertions, 1 deletions

diff --git a/Kernel/KResult.h b/Kernel/KResult.h
index 35f9a28ea2..3d821c4260 100644
--- a/Kernel/KResult.h
+++ b/Kernel/KResult.h
@@ -61,7 +61,7 @@ private:
 };
 
 template<typename T>
-class alignas(T) KResultOr {
+class alignas(T) [[nodiscard]] KResultOr {
 public:
     KResultOr(KResult error)
         : m_error(error)