From 2514cc471b408d405d5ebd6c1d7e2a93768f61c1 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 17 May 2022 18:17:36 +0200 Subject: [PATCH] USB: serial: pl2303: fix type detection for odd device commit e82e7c6dde91acd6748d672a44dc1980ce239f86 upstream. 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 Link: https://lore.kernel.org/r/20220517161736.13313-1-johan@kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- 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 1d878d05a6584..3506c47e1eef0 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -421,6 +421,9 @@ 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: