hwmon: (ad7418) fix checkpatch issues

fixed:
WARNING: simple_strtol is obsolete, use kstrtol instead
+	long temp = simple_strtol(buf, NULL, 10);

ERROR: do not use assignment in if condition
+	if (!(data = kzalloc(sizeof(struct ad7418_data), GFP_KERNEL))) {

ERROR: do not use assignment in if condition
+	if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs)))

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/hwmon/ad7418.c b/drivers/hwmon/ad7418.c
index 8cb718ce8237..42461d1ff101 100644
--- a/drivers/hwmon/ad7418.c
+++ b/drivers/hwmon/ad7418.c
@@ -167,7 +167,11 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
         struct i2c_client *client = to_i2c_client(dev);
         struct ad7418_data *data = i2c_get_clientdata(client);
-        long temp = simple_strtol(buf, NULL, 10);
+        long temp;
+        int ret = kstrtol(buf, 10, &temp);
+
+        if (ret < 0)
+                return ret;
 
         mutex_lock(&data->lock);
         data->temp[attr->index] = LM75_TEMP_TO_REG(temp);
@@ -228,7 +232,8 @@ static int ad7418_probe(struct i2c_client *client,
                 goto exit;
         }
 
-        if (!(data = kzalloc(sizeof(struct ad7418_data), GFP_KERNEL))) {
+        data = kzalloc(sizeof(struct ad7418_data), GFP_KERNEL);
+        if (!data) {
                 err = -ENOMEM;
                 goto exit;
         }
@@ -261,7 +266,8 @@ static int ad7418_probe(struct i2c_client *client,
         ad7418_init_client(client);
 
         /* Register sysfs hooks */
-        if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs)))
+        err = sysfs_create_group(&client->dev.kobj, &data->attrs);
+        if (err)
                 goto exit_free;
 
         data->hwmon_dev = hwmon_device_register(&client->dev);