Name
crypto_hash_init — 
  (re)initialize message digest handle
 
Synopsis
| int crypto_hash_init ( | struct hash_desc * desc ); | 
 
Arguments
- desc
- 
     cipher request handle that to be filled by caller --
     desc.tfm is filled with the hash cipher handle;
     desc.flags is filled with either CRYPTO_TFM_REQ_MAY_SLEEP or 0.
     
Description
   The call (re-)initializes the message digest referenced by the hash cipher
   request handle. Any potentially existing state created by previous
   operations is discarded.
Return
   0 if the message digest initialization was successful; < 0 if an
   error occurred