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authorJean Delvare <khali@linux-fr.org>2006-01-09 16:43:08 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-02-06 15:02:14 -0500
commit413b64515079a4063776d81067f69cc41bdb34ad (patch)
tree1353d1b285b84963ad48abac3327a397cbc818d2 /drivers/hwmon/lm77.c
parent21bbd691827e3610ef975a88863859381ac8d8e0 (diff)
[PATCH] hwmon: Fix negative temperature readings in lm77 driver
Fix negative temperature readings in lm77 driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Michael Renzmann <mrenzmann@otaku42.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/hwmon/lm77.c')
-rw-r--r--drivers/hwmon/lm77.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c
index a2f420d01fb7..df9e02aaa70a 100644
--- a/drivers/hwmon/lm77.c
+++ b/drivers/hwmon/lm77.c
@@ -87,15 +87,15 @@ static struct i2c_driver lm77_driver = {
87 87
88/* In the temperature registers, the low 3 bits are not part of the 88/* In the temperature registers, the low 3 bits are not part of the
89 temperature values; they are the status bits. */ 89 temperature values; they are the status bits. */
90static inline u16 LM77_TEMP_TO_REG(int temp) 90static inline s16 LM77_TEMP_TO_REG(int temp)
91{ 91{
92 int ntemp = SENSORS_LIMIT(temp, LM77_TEMP_MIN, LM77_TEMP_MAX); 92 int ntemp = SENSORS_LIMIT(temp, LM77_TEMP_MIN, LM77_TEMP_MAX);
93 return (u16)((ntemp / 500) * 8); 93 return (ntemp / 500) * 8;
94} 94}
95 95
96static inline int LM77_TEMP_FROM_REG(u16 reg) 96static inline int LM77_TEMP_FROM_REG(s16 reg)
97{ 97{
98 return ((int)reg / 8) * 500; 98 return (reg / 8) * 500;
99} 99}
100 100
101/* sysfs stuff */ 101/* sysfs stuff */