4 files changed, 7 insertions, 5 deletions
diff --git a/numpy/core/src/multiarray/convert_datatype.c b/numpy/core/src/multiarray/convert_datatype.c
index 849386504..1db3bfe85 100644
--- a/numpy/core/src/multiarray/convert_datatype.c
+++ b/numpy/core/src/multiarray/convert_datatype.c
@@ -36,7 +36,7 @@ NPY_NO_EXPORT npy_intp REQUIRED_STR_LEN[] = {0, 3, 5, 10, 10, 20, 20, 20, 20};
  * For backward compatibility
  *
  * Cast an array using typecode structure.
- * steals reference to at --- cannot be NULL
+ * steals reference to dtype --- cannot be NULL
  *
  * This function always makes a copy of arr, even if the dtype
  * doesn't change.
diff --git a/numpy/core/src/multiarray/methods.c b/numpy/core/src/multiarray/methods.c
index abfa04cb6..9104ffd03 100644
--- a/numpy/core/src/multiarray/methods.c
+++ b/numpy/core/src/multiarray/methods.c
@@ -352,9 +352,9 @@ array_swapaxes(PyArrayObject *self, PyObject *args)
 }
 
 
-/* steals typed reference */
 /*NUMPY_API
   Get a subset of bytes from each element of the array
+  steals reference to typed, must not be NULL
 */
 NPY_NO_EXPORT PyObject *
 PyArray_GetField(PyArrayObject *self, PyArray_Descr *typed, int offset)
@@ -410,6 +410,7 @@ array_getfield(PyArrayObject *self, PyObject *args, PyObject *kwds)
 
 /*NUMPY_API
   Set a subset of bytes from each element of the array
+  steals reference to dtype, must not be NULL
 */
 NPY_NO_EXPORT int
 PyArray_SetField(PyArrayObject *self, PyArray_Descr *dtype,
diff --git a/numpy/core/src/multiarray/multiarraymodule.c b/numpy/core/src/multiarray/multiarraymodule.c
index c6d3c632f..a05e87e84 100644
--- a/numpy/core/src/multiarray/multiarraymodule.c
+++ b/numpy/core/src/multiarray/multiarraymodule.c
@@ -1540,7 +1540,7 @@ PyArray_EquivTypenums(int typenum1, int typenum2)
  * NPY_RELAXED_STRIDES_CHECKING: If the strides logic is changed, the
  * order specific stride setting is not necessary.
  */
-static PyObject *
+static NPY_STEALS_REF_TO_ARG(1) PyObject *
 _prepend_ones(PyArrayObject *arr, int nd, int ndmin, NPY_ORDER order)
 {
     npy_intp newdims[NPY_MAXDIMS];
diff --git a/numpy/core/src/multiarray/scalarapi.c b/numpy/core/src/multiarray/scalarapi.c
index 8bbfb41fa..d71823566 100644
--- a/numpy/core/src/multiarray/scalarapi.c
+++ b/numpy/core/src/multiarray/scalarapi.c
@@ -831,8 +831,9 @@ PyArray_Scalar(void *data, PyArray_Descr *descr, PyObject *base)
 
 /*NUMPY_API
  *
- *Return either an array or the appropriate Python object if the array
- *is 0d and matches a Python type.
+ * Return either an array or the appropriate Python object if the array
+ * is 0d and matches a Python type.
+ * steals reference to mp
  */
 NPY_NO_EXPORT PyObject *
 PyArray_Return(PyArrayObject *mp)