include/linux/poison.h (5 lines of code) (raw):

#ifndef _LINUX_POISON_H #define _LINUX_POISON_H /********** include/linux/list.h **********/ /* * used to verify that nobody uses non-initialized list entries. */ #define LIST_POISON1 ((void *) 0x0) #define LIST_POISON2 ((void *) 0x0) #endif