gh-102336: Ensure CancelIoEx result is not ignored (GH-102347)

maxbachmann · web-flow · commit d3d20743ee1a · 2023-03-01T12:01:39.000Z
fix ignored return value
diff --git a/Modules/_winapi.c b/Modules/_winapi.c
@@ -288,7 +288,7 @@ _winapi_Overlapped_cancel_impl(OverlappedObject *self)
 
     if (self->pending) {
         Py_BEGIN_ALLOW_THREADS
-        CancelIoEx(self->handle, &self->overlapped);
+        res = CancelIoEx(self->handle, &self->overlapped);
         Py_END_ALLOW_THREADS
     }
 

Original file line number	Diff line number	Diff line change
`@@ -288,7 +288,7 @@ _winapi_Overlapped_cancel_impl(OverlappedObject *self)`
`288`	`288`
`289`	`289`	`if (self->pending) {`
`290`	`290`	`Py_BEGIN_ALLOW_THREADS`
`291`		`- CancelIoEx(self->handle, &self->overlapped);`
	`291`	`+ res = CancelIoEx(self->handle, &self->overlapped);`
`292`	`292`	`Py_END_ALLOW_THREADS`
`293`	`293`	`}`
`294`	`294`