Fix pointer device ordinal attribute result

Author: kkraus14

cuda_bindings/cuda/bindings/_lib/utils.pxi

@@ -380,11 +380,12 @@ cdef class _HelperCUpointer_attribute:
         if self._attr in (cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_CONTEXT,):
             return self._ctx
         elif self._attr in (cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_MEMORY_TYPE,
-                            cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_DEVICE_ORDINAL,
                             cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_ALLOWED_HANDLE_TYPES,
                             cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_IS_GPU_DIRECT_RDMA_CAPABLE,
                             cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_ACCESS_FLAGS,):
             return self._uint
+        elif self._attr in (cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_DEVICE_ORDINAL,):
+            return self._int
         elif self._attr in (cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_DEVICE_POINTER,
                             cydriver.CUpointer_attribute_enum.CU_POINTER_ATTRIBUTE_RANGE_START_ADDR,):
             return self._devptr

cuda_bindings/tests/test_cuda.py

@@ -456,12 +456,10 @@ def test_pointer_get_attributes_device_ordinal():
         cuda.CUpointer_attribute.CU_POINTER_ATTRIBUTE_DEVICE_ORDINAL,
     ]
 
-    attrs = cuda.cuPointerGetAttributes(len(attributes), attributes, 0)
+    err, attrs = cuda.cuPointerGetAttributes(len(attributes), attributes, 0)
 
-    # device ordinals are always small numbers.  A large number would indicate
-    # an overflow error.
-
-    assert abs(attrs[1][0]) < 256
+    assert err == cuda.CUresult.CUDA_SUCCESS
+    assert attrs == [cuda.CU_DEVICE_INVALID]
 
 
 @pytest.mark.skipif(not supportsManagedMemory(), reason="When new attributes were introduced")