SWDEV-548482 - Address memory leaks in memory tests (#526)

* SWDEV-548482 - Address memory leaks in memory tests

* SWDEV-548482 - Added destroy calls

* SWDEV-548482 - Address one more memory leak

* SWDEV-548482 - Minor tweaks

* SWDEV-548482 - Run clang-format

* SWDEV-548482 - Add new lines

* SWDEV-548482 - Run clang-format

* SWDEV-548482 - Minor fix

---------

Co-authored-by: Marko Arandjelovic <Marko.Arandjelovic@amd.com>

projects/hip-tests/catch/unit/memory/hipMallocMngdMultiThread.cc

@@ -84,11 +84,12 @@ static void LaunchKrnl(int* Hmm1, size_t NumElms, int InitVal, int GpuOrdnl, int
 }
 
 static void LaunchKrnl2(int* Hmm, size_t NumElms, int InitVal, int HmmMem) {
-  int *ptr = nullptr, blockSize = 64, *HstPtr = nullptr;
+  int *ptr = nullptr, blockSize = 64;
+  std::unique_ptr<int[]> host_ptr;
   hipStream_t strm;
   HIPCHECK(hipStreamCreate(&strm));
   if (HmmMem == 0) {
-    HstPtr = reinterpret_cast<int*>(new int[NumElms]);
+    host_ptr = std::make_unique<int[]>(NumElms);
     HIPCHECK(hipMalloc(&ptr, (sizeof(int) * NumElms)));
   } else {
     HIPCHECK(hipMallocManaged(&ptr, (sizeof(int) * NumElms)));
@@ -102,9 +103,9 @@ static void LaunchKrnl2(int* Hmm, size_t NumElms, int InitVal, int HmmMem) {
   // Verifying the result
   int DataMismatch = 0;
   if (HmmMem == 0) {
-    HIPCHECK(hipMemcpy(HstPtr, ptr, (sizeof(int) * NumElms), hipMemcpyDeviceToHost));
+    HIPCHECK(hipMemcpy(host_ptr.get(), ptr, (sizeof(int) * NumElms), hipMemcpyDeviceToHost));
     for (size_t i = 0; i < NumElms; ++i) {
-      if (HstPtr[i] != (InitVal + 10)) {
+      if (host_ptr[i] != (InitVal + 10)) {
         DataMismatch++;
       }
     }
@@ -418,6 +419,7 @@ TEST_CASE("Unit_hipMallocManaged_MultiKrnlComnHmm") {
     }
   }
   delete[] HstPtr;
+  HIP_CHECK(hipFree(Hmm));
 }
 
 
@@ -481,6 +483,8 @@ TEST_CASE("Unit_hipMallocManaged_MultiThrdMultiStrm") {
       thr.join();
     }
   }
+
+  HIP_CHECK(hipFree(Hmm1));
 }