From e82e7c6dde91acd6748d672a44dc1980ce239f86 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 17 May 2022 18:17:36 +0200
Subject: [PATCH] USB: serial: pl2303: fix type detection for odd device
Git-commit: e82e7c6dde91acd6748d672a44dc1980ce239f86
Patch-mainline: v5.19-rc1
References: git-fixes

At least one pl2303 device has a bcdUSB of 1.0.1 which most likely was
was intended as 1.1.

Allow bcdDevice 1.0.1 but interpret it as 1.1.

Fixes: 1e9faef4d26d ("USB: serial: pl2303: fix HX type detection")
Cc: stable@vger.kernel.org      # 5.13
Link: https://lore.kernel.org/linux-usb/CAJixRzqf4a9-ZKZDgWxicc_BpfdZVE9qqGmkiO7xEstOXUbGvQ@mail.gmail.com
Reported-by: Gary van der Merwe <gary.vandermerwe@fnb.co.za>
Link: https://lore.kernel.org/r/20220517161736.13313-1-johan@kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/usb/serial/pl2303.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 88b284d61681..e0555d313c2b 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -420,6 +420,9 @@ static int pl2303_detect_type(struct usb_serial *serial)
 	bcdUSB = le16_to_cpu(desc->bcdUSB);
 
 	switch (bcdUSB) {
+	case 0x101:
+		/* USB 1.0.1? Let's assume they meant 1.1... */
+		fallthrough;
 	case 0x110:
 		switch (bcdDevice) {
 		case 0x300:
-- 
2.35.3