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Subject[v1,1/1] hwmon: (nct7904) Fix the incorrect rang of temperature limitation registers.
Date
From: Amy Shih <amy.shih@advantech.com.tw>

The format of temperature limitation registers are 8-bit 2's complement
and the range is -128~127.
Converts the reading value to signed char to fix the incorrect range
of temperature limitation registers.

Signed-off-by: Amy Shih <amy.shih@advantech.com.tw>
---
drivers/hwmon/nct7904.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c
index 6fb06f7..04f2a8e 100644
--- a/drivers/hwmon/nct7904.c
+++ b/drivers/hwmon/nct7904.c
@@ -390,6 +390,7 @@ static int nct7904_read_temp(struct device *dev, u32 attr, int channel,
struct nct7904_data *data = dev_get_drvdata(dev);
int ret, temp;
unsigned int reg1, reg2, reg3;
+ s8 temps;

switch (attr) {
case hwmon_temp_input:
@@ -495,7 +496,8 @@ static int nct7904_read_temp(struct device *dev, u32 attr, int channel,

if (ret < 0)
return ret;
- *val = ret * 1000;
+ temps = ret;
+ *val = temps * 1000;
return 0;
}

--
1.8.3.1
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