From b61400c4e784065c9783442e8ef096fefa811901 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Mon, 22 Aug 2022 08:22:47 +0200 Subject: [PATCH] HID: input: fix uclogic tablets commit 8db8be9cfc89935c97d791c7e6264e710a7e8a56 upstream. commit 87562fcd1342 ("HID: input: remove the need for HID_QUIRK_INVERT") made the assumption that it was the only one handling tablets and thus kept an internal state regarding the tool. Turns out that the uclogic driver has a timer to release the in range bit, effectively making hid-input ignoring all in range information after the very first one. Fix that by having a more rationale approach which consists in forwarding every event and let the input stack filter out the duplicates. Reported-by: Stefan Hansson Fixes: 87562fcd1342 ("HID: input: remove the need for HID_QUIRK_INVERT") Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-input.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 48c1c02c69f4..871a185a0f1f 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1532,7 +1532,10 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct * assume ours */ if (!report->tool) - hid_report_set_tool(report, input, usage->code); + report->tool = usage->code; + + /* drivers may have changed the value behind our back, resend it */ + hid_report_set_tool(report, input, report->tool); } else { hid_report_release_tool(report, input, usage->code); }