[3.14] gh-153444: Fix compile warning in Modules/_interpchannelsmodule.c (GH-153445) (#153448)

miss-islington · sobolevn · web-flow · commit fff26a0e87e8 · 2026-07-10T11:36:20.000Z
gh-153444: Fix compile warning in `Modules/_interpchannelsmodule.c` (GH-153445) (cherry picked from commit 33678dc) Co-authored-by: sobolevn <mail@sobolevn.me>
diff --git a/Modules/_interpchannelsmodule.c b/Modules/_interpchannelsmodule.c
@@ -2935,7 +2935,8 @@ channelsmod_create(PyObject *self, PyObject *args, PyObject *kwds)
 
     int64_t cid = channel_create(&_globals.channels, defaults);
     if (cid < 0) {
-        (void)handle_channel_error(cid, self, cid);
+        // Negative `cid` can't be too big for a downcast:
+        (void)handle_channel_error((int)cid, self, cid);
         return NULL;
     }
     module_state *state = get_module_state(self);

Original file line number	Diff line number	Diff line change
`@@ -2935,7 +2935,8 @@ channelsmod_create(PyObject self, PyObject args, PyObject *kwds)`
`2935`	`2935`
`2936`	`2936`	`int64_t cid = channel_create(&_globals.channels, defaults);`
`2937`	`2937`	`if (cid < 0) {`
`2938`		`- (void)handle_channel_error(cid, self, cid);`
	`2938`	+ // Negative `cid` can't be too big for a downcast:
	`2939`	`+ (void)handle_channel_error((int)cid, self, cid);`
`2939`	`2940`	`return NULL;`
`2940`	`2941`	`}`
`2941`	`2942`	`module_state *state = get_module_state(self);`