media:pci:mgb4: Fixed negative hwmon temperatures processing

The "magic" temperature formula must be computed using a signed integer for
negative temperatures to work properly.

Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Martin Tůma 2026-01-23 13:14:58 +01:00 • committed by Hans Verkuil
commit 0924f7ed0c