diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
index b3db2c7d0957..b255b997e279 100644
--- a/drivers/input/keyboard/qt1070.c
+++ b/drivers/input/keyboard/qt1070.c
@@ -133,8 +133,7 @@ static int qt1070_probe(struct i2c_client *client)
 	int i;
 	int err;
 
-	err = i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE);
-	if (!err) {
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE)) {
 		dev_err(&client->dev, "%s adapter not supported\n",
 			dev_driver_string(&client->adapter->dev));
 		return -ENODEV;