verify_area

Name

verify_area --  Obsolete, use access_ok

Synopsis

int verify_area (int type, const void * addr, unsigned long size);

Arguments

type

Type of access: VERIFY_READ or VERIFY_WRITE

addr

User space pointer to start of block to check

size

Size of block to check

Context

User context only. This function may sleep.

Description

This function has been replaced by access_ok.

Checks if a pointer to a block of memory in user space is valid.

Returns zero if the memory block may be valid, -EFAULT if it is definitely invalid.

See access_ok for more details.