bpo-38823: Clean up refleak in fcntl module initialization. (GH-17236)

diff --git a/Modules/fcntlmodule.c b/Modules/fcntlmodule.c
index 1e5b0f7faea6fb6f265ac1818f2fb0ee7e6a6e6f..11906aa582929612ca643d07a522856a198d4f59 100644 (file)
--- a/Modules/fcntlmodule.c
+++ b/Modules/fcntlmodule.c
@@ -668,8 +668,10 @@ PyInit_fcntl(void)
         return NULL;
 
     /* Add some symbolic constants to the module */
-    if (all_ins(m) < 0)
+    if (all_ins(m) < 0) {
+        Py_DECREF(m);
         return NULL;
+    }
 
     return m;
 }