hwmon: (i5k_amb) fix checkpatch issues

fixed:
WARNING: simple_strtoul is obsolete, use kstrtoul instead
+	unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;

WARNING: simple_strtoul is obsolete, use kstrtoul instead
+	unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;

WARNING: simple_strtoul is obsolete, use kstrtoul instead
+	unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

1 files changed, 15 insertions, 3 deletions

diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c
index d22f241b6a67..a18882cc073d 100644
--- a/drivers/hwmon/i5k_amb.c
+++ b/drivers/hwmon/i5k_amb.c
@@ -159,8 +159,12 @@ static ssize_t store_amb_min(struct device *dev,
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
         struct i5k_amb_data *data = dev_get_drvdata(dev);
-        unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;
+        unsigned long temp;
+        int ret = kstrtoul(buf, 10, &temp);
+        if (ret < 0)
+                return ret;
 
+        temp = temp / 500;
         if (temp > 255)
                 temp = 255;
 
@@ -175,8 +179,12 @@ static ssize_t store_amb_mid(struct device *dev,
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
         struct i5k_amb_data *data = dev_get_drvdata(dev);
-        unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;
+        unsigned long temp;
+        int ret = kstrtoul(buf, 10, &temp);
+        if (ret < 0)
+                return ret;
 
+        temp = temp / 500;
         if (temp > 255)
                 temp = 255;
 
@@ -191,8 +199,12 @@ static ssize_t store_amb_max(struct device *dev,
 {
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
         struct i5k_amb_data *data = dev_get_drvdata(dev);
-        unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;
+        unsigned long temp;
+        int ret = kstrtoul(buf, 10, &temp);
+        if (ret < 0)
+                return ret;
 
+        temp = temp / 500;
         if (temp > 255)
                 temp = 255;