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hwmon: (lm87) Fix a division by zero 

Missing parentheses in the definition of FAN_FROM_REG cause a division
by zero for a specific register value.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
wifi-calibration
Jean Delvare 2007-09-26 22:16:56 +02:00 committed by Mark M. Hoffman
parent 428a7039c5
commit b965d4b7f6
1 changed files with 1 additions and 1 deletions
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drivers/hwmon/lm87.c
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@ -129,7 +129,7 @@ static u8 LM87_REG_TEMP_LOW[3] = { 0x3A, 0x38, 0x2C };
(((val) < 0 ? (val)-500 : (val)+500) / 1000))
#define FAN_FROM_REG(reg,div) ((reg) == 255 || (reg) == 0 ? 0 : \
1350000 + (reg)*(div) / 2) / ((reg)*(div))
(1350000 + (reg)*(div) / 2) / ((reg)*(div)))
#define FAN_TO_REG(val,div) ((val)*(div) * 255 <= 1350000 ? 255 : \
(1350000 + (val)*(div) / 2) / ((val)*(div)))