SWDEV-306940 - Fix hip errors/warnings by CppCheck (#2486)

Change-Id: I91f5e97b0c7ca80b6d21fa66d24e3cf9fde716a9

[ROCm/hip commit: 610b859b34]

projects/hip/samples/2_Cookbook/14_gpu_arch/gpuarch.cpp

@@ -48,17 +48,14 @@ __global__ void incrementKernel(int32_t* in, int32_t* out, int32_t value, size_t
 
 int main() {
   int32_t incrementValue = 10;
-  // Host pointers
-  int32_t* hInput = nullptr;
-  int32_t* hOutput = nullptr;
   // Device pointers
   int32_t* dInput = nullptr;
   int32_t* dOutput = nullptr;
 
   size_t NBytes = SIZE * sizeof(int32_t);
-
-  hInput = static_cast<int32_t*>(malloc(NBytes));
-  hOutput = static_cast<int32_t*>(malloc(NBytes));
+  // Host pointers
+  int32_t* hInput = static_cast<int32_t*>(malloc(NBytes));
+  int32_t* hOutput = static_cast<int32_t*>(malloc(NBytes));
 
   HIP_STATUS_CHECK(hipMalloc(&dInput, NBytes));
   HIP_STATUS_CHECK(hipMalloc(&dOutput, NBytes));
@@ -95,4 +92,4 @@ int main() {
     std::cout << "success\n";
   }
   return 0;
-}
+}