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authorShubhrajyoti D <shubhrajyoti@ti.com>2010-10-28 22:31:44 +0400
committerJean Delvare <khali@endymion.delvare>2010-10-28 22:31:44 +0400
commite3cd9528af4d1fd404eefe16e52ae421f99a7817 (patch)
treefe43f5a2ab475769ede0c639dd5823a8c6937bc4 /drivers/hwmon/lm75.c
parentc4f99a2b8fb4c564865f0037a2b7be690d4409f3 (diff)
downloadlinux-e3cd9528af4d1fd404eefe16e52ae421f99a7817.tar.xz
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>
Diffstat (limited to 'drivers/hwmon/lm75.c')
-rw-r--r--drivers/hwmon/lm75.c7
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);