From e1af24eac86c22cd2af65cbba22700e2b3d8f286 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 5 Sep 2021 14:49:49 +0200
Subject: [PATCH] Kernel: Make KResult usable with TRY() as well

This patch adds release_error() and release_value() to KResult, making
it usable with TRY().

Note that release_value() returns void, since there is no value inside
a KResult.
---
 Kernel/API/KResult.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Kernel/API/KResult.h b/Kernel/API/KResult.h
index 76e7cb87a0..2ddf0f95d0 100644
--- a/Kernel/API/KResult.h
+++ b/Kernel/API/KResult.h
@@ -40,6 +40,10 @@ public:
     bool operator!=(KSuccessTag) const { return is_error(); }
     bool operator==(KSuccessTag) const { return !is_error(); }
 
+    // NOTE: These are here to make KResult usable with TRY()
+    KResult release_error() { return *this; }
+    void release_value() { }
+
 private:
     template<typename T>
     friend class KResultOr;