tree e04e9dfcfbfc95ad5a529dd10b504c1dce22ae66
parent c8eb54041acc4dedeaf0d9da34b91b8658386751
author Dmitry Kasatkin <dmitry.kasatkin@nokia.com> 1290175464 +0200
committer Herbert Xu <herbert@gondor.apana.org.au> 1290847037 +0800

crypto: omap-sham - error handling improved

Introduces DMA error handling.

DMA error is returned as a result code of the hash request.
Clients needs to handle error codes and may repeat hash calculation attempt.

Also in the case of DMA error, SHAM module is set to be re-initialized again.
It significantly improves stability against possible HW failures.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>