hwmon: (lm75) Fix write operations for negative temperatures

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Writes into limit registers fail if the temperature written is negative.
The regmap write operation checks the value range, regmap_write accepts
an unsigned int as parameter, and the temperature value passed to
regmap_write is kept in a variable declared as long. Negative values
are converted large unsigned integers, which fails the range check.
Fix by type casting the temperature to u16 when calling regmap_write().

Cc: Iker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk>
Fixes: e65365fed8 ("hwmon: (lm75) Convert to use regmap")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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Guenter Roeck 2019-08-08 12:00:18 -07:00

parent 6f8c8f3c31

commit 7d82fcc9d9

1 changed files with 1 additions and 1 deletions

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drivers/hwmon/lm75.c

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