1. NAME

clear_user - Zero a block of memory in user space.

2. SYNOPSIS

unsigned long clear_user(void __user *  to , unsigned long  n );

3. ARGUMENTS

to
    Destination address, in user space.

n
    Number of bytes to zero.

4. DESCRIPTION

Zero a block of memory in user space.

Returns number of bytes that could not be cleared. On success, this will be zero.

5. COPYRIGHT