[PATCH AUTOSEL 4.19 02/12] HID: alps: fix error return code in alps_input_configured()

From: Sasha Levin
Date: Mon Apr 19 2021 - 16:48:58 EST


From: Jia-Ju Bai <baijiaju1990@xxxxxxxxx>

[ Upstream commit fa8ba6e5dc0e78e409e503ddcfceef5dd96527f4 ]

When input_register_device() fails, no error return code is assigned.
To fix this bug, ret is assigned with -ENOENT as error return code.

Reported-by: TOTE Robot <oslab@xxxxxxxxxxxxxxx>
Signed-off-by: Jia-Ju Bai <baijiaju1990@xxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/hid/hid-alps.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index f4cf541d13e0..3eddd8f73b57 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -766,6 +766,7 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)

if (input_register_device(data->input2)) {
input_free_device(input2);
+ ret = -ENOENT;
goto exit;
}
}
--
2.30.2