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Message-Id: <20211227151320.909662444@linuxfoundation.org>
Date: Mon, 27 Dec 2021 16:30:39 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Benjamin Tissoires <benjamin.tissoires@...hat.com>
Subject: [PATCH 5.4 03/47] HID: holtek: fix mouse probing
From: Benjamin Tissoires <benjamin.tissoires@...hat.com>
commit 93a2207c254ca102ebbdae47b00f19bbfbfa7ecd upstream.
An overlook from the previous commit: we don't even parse or start the
device, meaning that the device is not presented to user space.
Fixes: 93020953d0fa ("HID: check for valid USB device for many HID drivers")
Cc: stable@...r.kernel.org
Link: https://bugs.archlinux.org/task/73048
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215341
Link: https://lore.kernel.org/r/e4efbf13-bd8d-0370-629b-6c80c0044b15@leemhuis.info/
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/hid/hid-holtek-mouse.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
--- a/drivers/hid/hid-holtek-mouse.c
+++ b/drivers/hid/hid-holtek-mouse.c
@@ -65,8 +65,23 @@ static __u8 *holtek_mouse_report_fixup(s
static int holtek_mouse_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
+ int ret;
+
if (!hid_is_usb(hdev))
return -EINVAL;
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "hid parse failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ hid_err(hdev, "hw start failed: %d\n", ret);
+ return ret;
+ }
+
return 0;
}
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