[PATCH 0/5] drm/amd/pm: Prevent division by zero

[Denis Arefev <arefev@swemel.ru>]

This series of patches prevents possible division by zero.

The user can set any speed value.
If speed is greater than UINT_MAX/8, division by zero is possible.

Found by Linux Verification Center (linuxtesting.org) with SVACE. 

Denis Arefev (5):
  drm/amd/pm: Prevent division by zero
  drm/amd/pm: Prevent division by zero
  drm/amd/pm: Prevent division by zero
  drm/amd/pm: Prevent division by zero
  drm/amd/pm: Prevent division by zero

 drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_thermal.c   | 6 +++---
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c | 4 ++--
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c | 2 +-
 drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c       | 3 +++
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c          | 2 +-
 5 files changed, 10 insertions(+), 7 deletions(-)

I did not change these files, because the functions you are 
interested in are not used there for a long time.
drivers/gpu/drm/radeon/si_dpm.c
drivers/gpu/drm/radeon/ci_dpm.c

-- 
2.43.0