is there any advantage of using lis_kmalloc instead of kmalloc

hi all,

   I am working with LiS-2.18 (down loaded from gcom.com) on,
   Redhat Enterprise Linux WS release 4 ( Nahant Update 2)  with kernel
version 2.6.9-16.EL .

   I merged my drivers along with streams. I created a folder named x25 in
/usr/src/LiS/pkg
   and placed Makefile , Config and binary file(  .o  file) in it.

   In my driver,  i am using kmalloc. The same driver code is working fine
on  ES3 with
   2.4.xx.xx.EL  I want to overcome this fatal error.
   Mean while, i went thru LiS files. I came across some functions like
lis_kmalloc and lis_kfree.
   I went thru code. I hope its same as kmalloc if u passed 0 as third
argument to lis_kmalloc.

    let me know, whether any advantage of using lis_kmalloc instead of
kmalloc directly.
    If u know any issues regarding kmalloc from kernel version 2.4 to 2.6,
pls. share with me.

    Thanks in advance.

regards,
kishore,packetware.