Name
crypto_shash_update — 
  add data to message digest for processing
 
Synopsis
| int crypto_shash_update ( | struct shash_desc * desc, | 
|  | const u8 * data, | 
|  | unsigned int len ); | 
 
Arguments
- desc
- 
     operational state handle that is already initialized
     
- data
- 
     input data to be added to the message digest
     
- len
- 
     length of the input data
     
Description
   Updates the message digest state of the operational state handle.
Return
   0 if the message digest update was successful; < 0 if an error
   occurred