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Commit b965d4b7 authored by Jean Delvare's avatar Jean Delvare Committed by Mark M. Hoffman
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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: default avatarJean Delvare <khali@linux-fr.org>
Acked-by: default avatarHans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: default avatarMark M. Hoffman <mhoffman@lightlink.com>
parent 428a7039

drivers/hwmon/lm87.c

+1 −1
Original line number Diff line number Diff line
@@ -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)))