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(parent: f23e911) | patch
drm/amd/pm: Prevent division by zero
authorDenis Arefev <arefev@swemel.ru>
Fri, 21 Mar 2025 10:52:32 +0000 (13:52 +0300)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 26 Mar 2025 21:41:23 +0000 (17:41 -0400)
commit7d641c2b83275d3b0424127b2e0d2d0f7dd82aef
tree25e01ef3cf1c5320d93932d7166ebf9944846caetree
parentf23e9116ebb71b63fe9cec0dcac792aa9af30b0ccommit | diff
drm/amd/pm: Prevent 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.

Fixes: b64625a303de ("drm/amd/pm: correct the address of Arcturus fan related registers")
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c diff | blob | history
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