hwmon: (asc7621) Convert to use devm_ functions

Convert to use devm_ functions to reduce code size and simplify the code.

Cc: George Joseph <george.joseph@fairview5.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: George Joseph <george.joseph@fairview5.com>
diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c
index 7caa242..b867aab7 100644
--- a/drivers/hwmon/asc7621.c
+++ b/drivers/hwmon/asc7621.c
@@ -1109,7 +1109,8 @@
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -EIO;
 
-	data = kzalloc(sizeof(struct asc7621_data), GFP_KERNEL);
+	data = devm_kzalloc(&client->dev, sizeof(struct asc7621_data),
+			    GFP_KERNEL);
 	if (data == NULL)
 		return -ENOMEM;
 
@@ -1143,7 +1144,6 @@
 				   &(asc7621_params[i].sda.dev_attr));
 	}
 
-	kfree(data);
 	return err;
 }
 
@@ -1192,7 +1192,6 @@
 				   &(asc7621_params[i].sda.dev_attr));
 	}
 
-	kfree(data);
 	return 0;
 }