hwmon: (lm75) Make the writing to sysfs more robust

Currently we get the checkpatch warning
consider using strict_strtol in preference to simple_strtol.
Also we should not allow any partially numeric values.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index ab5b87a81677..5cb79d94a990 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -103,7 +103,12 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
         struct i2c_client *client = to_i2c_client(dev);
         struct lm75_data *data = i2c_get_clientdata(client);
         int nr = attr->index;
-        long temp = simple_strtol(buf, NULL, 10);
+        long temp;
+        int error;
+
+        error = strict_strtol(buf, 10, &temp);
+        if (error)
+                return error;
 
         mutex_lock(&data->update_lock);
         data->temp[nr] = LM75_TEMP_TO_REG(temp);