Name
skb_frag_address_safe — 
     gets the address of the data contained in a paged fragment
 
Synopsis
| void * skb_frag_address_safe ( | const skb_frag_t * frag ); | 
 
Arguments
- frag
- 
     the paged fragment buffer
     
Description
   Returns the address of the data within frag. Checks that the page
   is mapped and returns NULL otherwise.