COMPMID-2098: Scope handling of memory group resources.

Change-Id: Ie945526bd7845301458039edf3129253c1808505
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/938
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/runtime/NEON/functions/NEGEMMLowpAssemblyMatrixMultiplyCore.cpp b/src/runtime/NEON/functions/NEGEMMLowpAssemblyMatrixMultiplyCore.cpp
index 47c3358..ede89bf 100644
--- a/src/runtime/NEON/functions/NEGEMMLowpAssemblyMatrixMultiplyCore.cpp
+++ b/src/runtime/NEON/functions/NEGEMMLowpAssemblyMatrixMultiplyCore.cpp
@@ -1,4 +1,5 @@
-/* Copyright (c) 2017-2018 ARM Limited.
+/*
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -116,7 +117,7 @@
 
 void NEGEMMLowpAssemblyMatrixMultiplyCore::run()
 {
-    _memory_group.acquire();
+    MemoryGroupResourceScope scope_mg(_memory_group);
     if(_mtx_a_reshape_kernel)
     {
         NEScheduler::get().schedule(_mtx_a_reshape_kernel.get(), Window::DimY);
@@ -135,6 +136,4 @@
     {
         NEScheduler::get().schedule(_mm_kernel.get(), Window::DimY);
     }
-
-    _memory_group.release();
 }