COMPMID-754: Add validation to (De)QuantizationLayers

Change-Id: If8fa1277e8dc5b8e28a8bcad4ff9fc672b00ce9a
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/123275
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/src/runtime/CL/functions/CLDequantizationLayer.cpp b/src/runtime/CL/functions/CLDequantizationLayer.cpp
index 5559d42..6f33b2e 100644
--- a/src/runtime/CL/functions/CLDequantizationLayer.cpp
+++ b/src/runtime/CL/functions/CLDequantizationLayer.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -24,6 +24,7 @@
 
 #include "arm_compute/runtime/CL/functions/CLDequantizationLayer.h"
 
+#include "arm_compute/core/CL/ICLTensor.h"
 #include "arm_compute/runtime/CL/CLScheduler.h"
 
 using namespace arm_compute;
@@ -33,8 +34,18 @@
 {
 }
 
+Status CLDequantizationLayer::validate(const ITensorInfo *input, const ITensorInfo *output, const ITensorInfo *min_max)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(input, output, min_max);
+    ARM_COMPUTE_RETURN_ON_ERROR(CLDequantizationLayerKernel::validate(input, output, min_max));
+
+    return Status{};
+}
+
 void CLDequantizationLayer::configure(const ICLTensor *input, ICLTensor *output, const ICLTensor *min_max)
 {
+    ARM_COMPUTE_ERROR_ON_NULLPTR(input, output, min_max);
+
     _dequantize_kernel.configure(input, output, min_max);
 }