Fix wrong return type.

sbrodehl · sbrodehl · commit 018c538bb807 · 2024-09-14T14:40:07.000+02:00
diff --git a/src/bison/c/bison_callback.c b/src/bison/c/bison_callback.c
@@ -152,7 +152,7 @@ PyObject* py_callback(PyObject *parser, char *target, int option, int nargs, ...
     PyObject *exc = PyErr_Occurred();
     if(unlikely(exc)){
       printf("exception in callback!!\n");
-      return -1;
+      return NULL;
     }
     Py_DECREF(handle);
     Py_DECREF(arglist);

Original file line number	Diff line number	Diff line change
`@@ -152,7 +152,7 @@ PyObject* py_callback(PyObject parser, char target, int option, int nargs, ...`
`152`	`152`	`PyObject *exc = PyErr_Occurred();`
`153`	`153`	`if(unlikely(exc)){`
`154`	`154`	`printf("exception in callback!!\n");`
`155`		`- return -1;`
	`155`	`+ return NULL;`
`156`	`156`	`}`
`157`	`157`	`Py_DECREF(handle);`
`158`	`158`	`Py_DECREF(arglist);`