From 95aef24803bc1317a4ba022ecd49fa531c29d3ca Mon Sep 17 00:00:00 2001
From: theraven <theraven@72102866-910b-0410-8b05-ffd578937521>
Date: Sat, 5 Jan 2013 16:13:23 +0000
Subject: [PATCH] Fix crash in ARC assignment.

Reported by Banlu Name-of-the-week!
---
 arc.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arc.m b/arc.m
index 252d1bf..3d4f7a3 100644
--- a/arc.m
+++ b/arc.m
@@ -520,7 +520,7 @@ id objc_storeWeak(id *addr, id obj)
 					break;
 				}
 			}
-			oldRef = oldRef->next;
+			oldRef = (oldRef == NULL) ? NULL : oldRef->next;
 		}
 	}
 	if (nil == obj)