[PATCH v1 0/3] Fixes and rework for paes_s390

Fix and rework some issues around arch/s390/paes_s390.c:

- Fix skcipher_walk return code handling in paes_s390
- Add scrub of some temp buffers
- Shift from using a mutex to using a semaphore in PAES CTR
  Surprisingly clang code analysis is able to deal with semaphores and
  thus the shift also fixes the issue with CONTEXT_ANALYSIS enabled.

For more details please see patch headers.

Changelog:

v1: initial version - however, all these patches are follow up patches
    from a similar patch queue for aes_s390.c

Harald Freudenberger (3):
  s390/crypto: Fix return code handling at skcipher_walk_done in PAES
    algorithms
  s390/crypto: Fix missing scrub of temp buffers with PAES algorithm
  s390/crypto: Fix use of mutex in atomic context in PAES

 arch/s390/crypto/paes_s390.c | 56 ++++++++++++++++++++++++------------
 1 file changed, 37 insertions(+), 19 deletions(-)


base-commit: f5098b6bae761e346ebcd9da7f95622c04733cff
-- 
2.43.0