From: Shubhrajyoti D <shubhrajyoti@ti.com>
Date: Thu, 28 Oct 2010 18:31:44 +0000 (+0200)
Subject: hwmon: (lm75) Make the writing to sysfs more robust
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e3cd9528af4d1fd404eefe16e52ae421f99a7817;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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>
---

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);