clear_user(void *to, unsigned long n) 
clear_user(void __user *to, unsigned long n) 
clear_user(void *to, unsigned long n){	if (access_ok(VERIFY_WRITE, to, n))		__do_clear_user(to, n);	return n;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/a880948b2b88c05af9a471ca5c52883e64d3f7b8/usercopy.c/clean/arch/m32r/lib/usercopy.c