[PATCH v2] MdeModulePkg/AcpiPlatformDxe: Unload after execution.

["Marvin Häuser" <Marvin.Haeuser@outlook.com>]

AcpiPlatformDxe solely performs one-time tasks and does not expose
any services or create any events. Hence it can safely be unloaded
after the Entry Point execution by returning an error code.

V2: Return EFI_REQUEST_UNLOAD_IMAGE.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marvin Haeuser <Marvin.Haeuser@outlook.com>
---
 MdeModulePkg/Universal/Acpi/AcpiPlatformDxe/AcpiPlatform.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Universal/Acpi/AcpiPlatformDxe/AcpiPlatform.c b/MdeModulePkg/Universal/Acpi/AcpiPlatformDxe/AcpiPlatform.c
index 44bdd94fa8db..8f335bde0d46 100644
--- a/MdeModulePkg/Universal/Acpi/AcpiPlatformDxe/AcpiPlatform.c
+++ b/MdeModulePkg/Universal/Acpi/AcpiPlatformDxe/AcpiPlatform.c
@@ -1,7 +1,7 @@
 /** @file
   Sample ACPI Platform Driver
 
-  Copyright (c) 2008 - 2011, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at
@@ -255,6 +255,9 @@ AcpiPlatformEntryPoint (
     }
   }
 
-  return EFI_SUCCESS;
+  //
+  // The driver does not require to be kept loaded.
+  //
+  return EFI_REQUEST_UNLOAD_IMAGE;
 }
 
-- 
2.17.0.windows.1