Fix crash in ARC assignment.

Reported by Banlu Name-of-the-week!
13 years ago · 95aef24803
parent c6614a218c
commit 95aef24803
1 changed files with 1 additions and 1 deletions
--- 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)