Currently input_grab_device() isn't covered by any tests Thus, adding a test to cover the cases: 1. The device is grabbed successfully 2. Trying to grab a device that is already grabbed by another input handle Signed-off-by: Dana Elfassy <dangel101@xxxxxxxxx> Tested-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> --- Changes in v2: - Use input_put_device() to decrement the refcount increased by get(). - Remove unnecessary struct input_handle test_handle variable. drivers/input/tests/input_test.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/input/tests/input_test.c b/drivers/input/tests/input_test.c index 25bbf51b5c87..cea0167a74d2 100644 --- a/drivers/input/tests/input_test.c +++ b/drivers/input/tests/input_test.c @@ -124,10 +124,33 @@ static void input_test_match_device_id(struct kunit *test) KUNIT_ASSERT_FALSE(test, input_match_device_id(input_dev, &id)); } +static void input_test_grab(struct kunit *test) +{ + struct input_dev *input_dev = test->priv; + struct input_handler handler; + struct input_handle handle; + struct input_device_id id; + int res; + + handler.name = "handler"; + handler.id_table = &id; + + handle.dev = input_get_device(input_dev); + handle.name = dev_name(&input_dev->dev); + handle.handler = &handler; + res = input_grab_device(&handle); + KUNIT_ASSERT_TRUE(test, input_grab_device(&handle)); + + res = input_grab_device(&handle); + KUNIT_ASSERT_EQ(test, res, -EBUSY); + input_put_device(input_dev); +} + static struct kunit_case input_tests[] = { KUNIT_CASE(input_test_polling), KUNIT_CASE(input_test_timestamp), KUNIT_CASE(input_test_match_device_id), + KUNIT_CASE(input_test_grab), { /* sentinel */ } }; -- 2.40.1