commit 5a57ade58ec5bee85db41b8ce1340ff077781b65
author Serhiy Storchaka <storchaka@gmail.com> Thu Dec 24 10:35:59 2015 +0200
committer Serhiy Storchaka <storchaka@gmail.com> Thu Dec 24 10:35:59 2015 +0200
tree 2f8cf61efba46284b2d4437916bc3469d23c0ce3
parent a198645fa0f9a9c6183c211955083765dc8ab3a8

Issue #20440: Massive replacing unsafe attribute setting code with special
macro Py_SETREF.

Modules/zlibmodule.c

diff --git a/Modules/zlibmodule.c b/Modules/zlibmodule.c
index 37307be..a15fdb2 100644
--- a/Modules/zlibmodule.c
+++ b/Modules/zlibmodule.c
@@ -667,8 +667,7 @@
                       PyBytes_AS_STRING(self->unused_data), old_size);
             Py_MEMCPY(PyBytes_AS_STRING(new_data) + old_size,
                       self->zst.next_in, self->zst.avail_in);
-            Py_DECREF(self->unused_data);
-            self->unused_data = new_data;
+            Py_SETREF(self->unused_data, new_data);
             self->zst.avail_in = 0;
         }
     }
@@ -680,8 +679,7 @@
                 (char *)self->zst.next_in, self->zst.avail_in);
         if (new_data == NULL)
             return -1;
-        Py_DECREF(self->unconsumed_tail);
-        self->unconsumed_tail = new_data;
+        Py_SETREF(self->unconsumed_tail, new_data);
     }
     return 0;
 }