Commit 413b6451 authored by Jean Delvare's avatar Jean Delvare Committed by Greg Kroah-Hartman
Browse files

[PATCH] hwmon: Fix negative temperature readings in lm77 driver 



Fix negative temperature readings in lm77 driver.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Acked-by: default avatarMichael Renzmann <mrenzmann@otaku42.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 21bbd691

drivers/hwmon/lm77.c

+4 −4
Original line number Diff line number Diff line
@@ -87,15 +87,15 @@ static struct i2c_driver lm77_driver = { 


/* In the temperature registers, the low 3 bits are not part of the

   temperature values; they are the status bits. */

static inline u16 LM77_TEMP_TO_REG(int temp)

static inline s16 LM77_TEMP_TO_REG(int temp)

{

	int ntemp = SENSORS_LIMIT(temp, LM77_TEMP_MIN, LM77_TEMP_MAX);

	return (u16)((ntemp / 500) * 8);

	return (ntemp / 500) * 8;

}



static inline int LM77_TEMP_FROM_REG(u16 reg)

static inline int LM77_TEMP_FROM_REG(s16 reg)

{

	return ((int)reg / 8) * 500;

	return (reg / 8) * 500;

}



/* sysfs stuff */