Allow <linux/list.h> to be used even without NULL defined yet.

866559c1 · Linus Torvalds · 2a8ee63d · 866559c1
Commit 866559c1 authored Jun 02, 2002 by Linus Torvalds
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include/linux/list.h include/linux/list.h +2 -2

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--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -94,8 +94,8 @@ static __inline__ void __list_del(struct list_head * prev,
 static __inline__ void list_del(struct list_head *entry)
 {
 	__list_del(entry->prev, entry->next);
-	entry->next = NULL;
+	entry->next = (void *) 0;
-	entry->prev = NULL;
+	entry->prev = (void *) 0;
 }
 /**