linux-kernel - [PATCH v1 03/19] hid-ft260: fix i2c driver regression in ft260_raw

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Message-Id: <20240210215147.77629-4-michael.zaidman@gmail.com>
Date: Sat, 10 Feb 2024 23:51:31 +0200
From: Michael Zaidman <michael.zaidman@...il.com>
To: chrysh@...istina-quast.de,
	daniel.beer@...rinstitute.com,
	jikos@...nel.org
Cc: linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org,
	linux-serial@...r.kernel.org,
	ilpo.jarvinen@...ux.intel.com,
	johan@...nel.org,
	gregkh@...uxfoundation.org,
	equinox@...c24.net,
	michael.zaidman@...il.com
Subject: [PATCH v1 03/19] hid-ft260: fix i2c driver regression in ft260_raw_event

Fix i2c regression in ft260_raw_event introduced by
"[PATCH v4 RESEND] hid-ft260: Add serial driver" patch:
https://lore.kernel.org/all/20231218093153.192268-1-contact@christina-quast.de/

It caused wrong printout per every hid input report:

[21912.237393] ft260 0003:0403:6030.000C: unhandled report 0xde
[21912.247405] ft260 0003:0403:6030.000C: unhandled report 0xde
[21912.249403] ft260 0003:0403:6030.000C: unhandled report 0xd1
[21912.275399] ft260 0003:0403:6030.000C: unhandled report 0xde
[21912.285404] ft260 0003:0403:6030.000C: unhandled report 0xde
[21912.287403] ft260 0003:0403:6030.000C: unhandled report 0xd1
[21912.315406] ft260 0003:0403:6030.000C: unhandled report 0xde
[21912.326390] ft260 0003:0403:6030.000C: unhandled report 0xde
[21912.327402] ft260 0003:0403:6030.000C: unhandled report 0xd1

Signed-off-by: Michael Zaidman <michael.zaidman@...il.com>
---
 drivers/hid/hid-ft260.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hid/hid-ft260.c b/drivers/hid/hid-ft260.c
index a67c625c9165..a348f11600c6 100644
--- a/drivers/hid/hid-ft260.c
+++ b/drivers/hid/hid-ft260.c
@@ -1755,6 +1755,8 @@ static int ft260_raw_event(struct hid_device *hdev, struct hid_report *report,
 		if (dev->read_idx == dev->read_len)
 			complete(&dev->wait);
 
+		return 0;
+
 	} else if (xfer->length > FT260_RD_DATA_MAX) {
 		hid_err(hdev, "Received data too long (%d)\n", xfer->length);
 		return -EBADR;
-- 
2.40.1