From: Jean Delvare <khali@linux-fr.org>
Date: Wed, 26 Sep 2007 20:16:56 +0000 (+0200)
Subject: hwmon: (lm87) Fix a division by zero
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=b965d4b7f614522170af6a7e450be0333792ccd2;p=openwrt%2Fstaging%2Fblogic.git

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>
---

diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c
index e60076e8b597..ef8a9b251cd8 100644
--- a/drivers/hwmon/lm87.c
+++ b/drivers/hwmon/lm87.c
@@ -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)))