1 files changed, 7 insertions, 7 deletions
diff --git a/Modules/dlmodule.c b/Modules/dlmodule.c
index 18b97d8..46ae926 100644
--- a/Modules/dlmodule.c
+++ b/Modules/dlmodule.c
@@ -158,6 +158,13 @@ dl_open(PyObject *self, PyObject *args)
 	char *name;
 	int mode;
 	PyUnivPtr *handle;
+	if (sizeof(int) != sizeof(long) ||
+	    sizeof(long) != sizeof(char *)) {
+		PyErr_SetString(PyExc_SystemError,
+ "module dl requires sizeof(int) == sizeof(long) == sizeof(char*)");
+		return NULL;
+	}
+
 	if (PyArg_Parse(args, "z", &name))
 		mode = RTLD_LAZY;
 	else {
@@ -204,13 +211,6 @@ initdl(void)
 {
 	PyObject *m, *d, *x;
 
-	if (sizeof(int) != sizeof(long) ||
-	    sizeof(long) != sizeof(char *)) {
-		PyErr_SetString(PyExc_SystemError,
- "module dl requires sizeof(int) == sizeof(long) == sizeof(char*)");
-		return;
-	}
-
 	/* Initialize object type */
 	Dltype.ob_type = &PyType_Type;