if (cb->args[1]) { cb->done = (void*)cb->args[1]; cb->args[1] = 0; } 
cb->done = (void*)cb->args[1]; cb->args[1] = 0; 
static void fib6_dump_end(struct netlink_callback *cb){	struct fib6_walker_t *w = (void*)cb->args[0];	if (w) {		cb->args[0] = 0;		fib6_walker_unlink(w);		kfree(w);	}	if (cb->args[1]) {		cb->done = (void*)cb->args[1];		cb->args[1] = 0;	}}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/efacfbcb6c88677809f44a574fbcd9824835dccb/route.c/buggy/net/ipv6/route.c