tree 49f518ce469dd8fc3636d65ffccd28899741c098
parent 51b8c2cd92f1b59657a13339dffcca79c76126d1
author Guenter Roeck <linux@roeck-us.net> 1466822517 -0700
committer Guenter Roeck <linux@roeck-us.net> 1467079084 -0700

hwmon: (ina3221) Fix negative limits

The result of an integer divide by an unsigned is undefined.
This causes unexpected results when writing negative values
into the limit registers.

Maintain the shunt_resistors variables as signed integer to avoid
the problem. Also, for simplicity and ease of use, clamp shunt
resistor value on writes instead of rejecting bad values.

Cc: Andrew F. Davis <afd@ti.com>
Acked-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>