tree bd197e8e568310bb71c6469f7d9242ed8b056df1
parent 6b00f440dd678d786389a7100a2e03fe44478431
author Guenter Roeck <linux@roeck-us.net> 1405557631 -0700
committer Guenter Roeck <linux@roeck-us.net> 1405570727 -0700

hwmon: (adt7470) Fix writes to temperature limit registers

Temperature limit registers are signed. Limits therefore need
to be clamped to (-128, 127) degrees C and not to (0, 255)
degrees C.

Without this fix, writing a limit of 128 degrees C sets the
actual limit to -128 degrees C.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Reviewed-by: Axel Lin <axel.lin@ingics.com>