centos man page for list_first_entry_or_null

LIST_FIRST_ENTRY_OR_(9) 					    Data Types						   LIST_FIRST_ENTRY_OR_(9)

NAME
       list_first_entry_or_null - get the first element from a list

SYNOPSIS
       list_first_entry_or_null(ptr, type, member);

ARGUMENTS
       ptr
	   the list head to take the element from.

       type
	   the type of the struct this is embedded in.

       member
	   the name of the list_struct within the struct.

DESCRIPTION
       Note that if the list is empty, it returns NULL.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   LIST_FIRST_ENTRY_OR_(9)