On Sat, 2010-10-09 at 09:29 +0800, Herbert Xu wrote:
> Mimi Zohar <zo...@linux.vnet.ibm.com> wrote:
> > Hi,
> > 
> > Looking at different examples of the same crypto call, it's unclear
> > whether it only returns negative error values. Some examples only test
> > for negative values, while others test for not 0. tcrypt.c does "if
> > (ret)".  Would appreciate some clarification.
> 
> Unless the call can return positive values then it makes no
> difference.  Which particular call are you talking about?
> 
> Cheers,

Just to name a few: crypto_hash_init(), crypto_hash_update(),
crypto_hash_final(). Also crypto_blkcipher_decrypt/encrypt().  Would be
nice to know definitively that they return < 0 on error and 0 for
success.

thanks!

Mimi

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