linux-toradex.git/drivers/hwmon, branch v4.10

hwmon: (lm90) fix temp1_max_alarm attribute

2017-01-02T18:15:28+00:00

Since commit commit eb1c8f4325d5 ("hwmon: (lm90) Convert to use new hwmon
registration API") the temp1_max_alarm and temp1_crit_alarm attributes are
mapped to the same alarm bit. Fix the typo.

Fixes: eb1c8f4325d5 ("hwmon: (lm90) Convert to use new hwmon registration API")
Signed-off-by: Micehael Walle 
Signed-off-by: Guenter Roeck

hwmon: (g762) Fix overflows and crash seen when writing limit attributes

2016-12-12T19:33:44+00:00

Fix overflows seen when writing into fan speed limit attributes.
Also fix crash due to division by zero, seen when certain very
large values (such as 2147483648, or 0x80000000) are written
into fan speed limit attributes.

Fixes: 594fbe713bf60 ("Add support for GMT G762/G763 PWM fan controllers")
Cc: Arnaud Ebalard 
Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (emcw201) Fix overflows seen when writing into limit attributes

2016-12-12T19:33:44+00:00

Writes into temperature and voltage limit attributes can overflow
due to multiplications with unchecked parameters. Also, the input
parameter to DIV_ROUND_CLOSEST() needis to be range checked.

Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (emc2103) Fix overflows seen when temperature limit attributes

2016-12-12T19:33:43+00:00

Writes into temperature limit attributes can overflow due to unbound
values passed to DIV_ROUND_CLOSEST().

Cc: Steve Glendinning 
Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (lm85) Fix overflows seen when writing voltage limit attributes

2016-12-12T19:33:43+00:00

Writes into voltage limit attributes can overflow due to an unbound
multiplication.

Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (lm87) Fix overflow seen when writing voltage limit attributes

2016-12-12T19:33:42+00:00

Writes into voltage limit attributes can overflow due to an unbound
multiplication.

Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (nct7802) Fix overflows seen when writing into limit attributes

2016-12-12T19:32:34+00:00

Fix overflows seen when writing voltage and temperature limit attributes.

The value passed to DIV_ROUND_CLOSEST() needs to be clamped, and the
value parameter passed to nct7802_write_fan_min() is an unsigned long.

Also, writing values larger than 2700000 into a fan limit attribute results
in writing 0 into the chip's limit registers. The exact behavior when
writing this value is unspecified. For consistency, report a limit of
1350000 if the chip register reads 0. This may be wrong, and the chip
behavior should be verified with the actual chip, but it is better than
reporting a value of 0 (which, when written, results in writing a value
of 0x1fff into the chip register).

Fixes: 3434f3783580 ("hwmon: Driver for Nuvoton NCT7802Y")
Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (adt7470) Fix overflows seen when writing into limit attributes

2016-12-10T05:54:32+00:00

Fix overflows seen when writing large values into various temperature limit
attributes.

The input value passed to DIV_ROUND_CLOSEST() needs to be clamped to avoid
such overflows.

Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (adt7462) Fix overflows seen when writing into limit attributes

2016-12-10T05:54:31+00:00

Fix overflows seen when writing large values into temperature limit,
voltage limit, and pwm hysteresis attributes.

The input parameter to DIV_ROUND_CLOSEST() needs to be clamped to avoid
such overflows.

Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (adm1026) Fix overflows seen when writing into limit attributes

2016-12-10T05:54:30+00:00

Fix overflows seen when writing large values into voltage limit,
temperature limit, temperature offset, and DAC attributes.

Overflows are seen due to unbound multiplications and additions.

While at it, change the low temperature limit to -128 degrees C,
since this is the minimum temperature accepted by the chip.

Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck