Merge pull request #72 from amcamd/mem_leak

return error if handle is nullptr

Author: amcamd

library/include/hipblas.h

@@ -30,7 +30,8 @@ enum hipblasStatus_t {
   HIPBLAS_STATUS_EXECUTION_FAILED = 5, // GPU program failed to execute
   HIPBLAS_STATUS_INTERNAL_ERROR = 6,    // an internal HIPBLAS operation failed
   HIPBLAS_STATUS_NOT_SUPPORTED = 7,     // function not implemented
-  HIPBLAS_STATUS_ARCH_MISMATCH = 8
+  HIPBLAS_STATUS_ARCH_MISMATCH = 8,
+  HIPBLAS_STATUS_HANDLE_IS_NULLPTR = 9  // hipBLAS handle is null pointer
 };
 
 // set the values of enum constants to be the same as those used in cblas

library/src/hcc_detail/hipblas.cpp

@@ -265,7 +265,7 @@ hipblasStatus_t hipblasCreate(hipblasHandle_t* handle)
 
     if (handle == nullptr)
     {
-        handle = (hipblasHandle_t *) new rocblas_handle();
+        return HIPBLAS_STATUS_HANDLE_IS_NULLPTR;
     }
 
     err = hipGetDevice(&deviceId);