This is a note to let you know that I've just added the patch titled
USB: ssu100: fix overrun-error reporting
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-ssu100-fix-overrun-error-reporting.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 75bcbf29c284dd0154c3e895a0bd1ef0e796160e Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@xxxxxxxxxx>
Date: Tue, 18 Nov 2014 11:25:21 +0100
Subject: USB: ssu100: fix overrun-error reporting
From: Johan Hovold <johan@xxxxxxxxxx>
commit 75bcbf29c284dd0154c3e895a0bd1ef0e796160e upstream.
Fix reporting of overrun errors, which should only be reported once
using the inserted null character.
Fixes: 6b8f1ca5581b ("USB: ssu100: set tty_flags in ssu100_process_packet")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/ssu100.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -490,10 +490,9 @@ static void ssu100_update_lsr(struct usb
if (*tty_flag == TTY_NORMAL)
*tty_flag = TTY_FRAME;
}
- if (lsr & UART_LSR_OE){
+ if (lsr & UART_LSR_OE) {
port->icount.overrun++;
- if (*tty_flag == TTY_NORMAL)
- *tty_flag = TTY_OVERRUN;
+ tty_insert_flip_char(&port->port, 0, TTY_OVERRUN);
}
}
@@ -511,12 +510,8 @@ static void ssu100_process_read_urb(stru
if ((len >= 4) &&
(packet[0] == 0x1b) && (packet[1] == 0x1b) &&
((packet[2] == 0x00) || (packet[2] == 0x01))) {
- if (packet[2] == 0x00) {
+ if (packet[2] == 0x00)
ssu100_update_lsr(port, packet[3], &flag);
- if (flag == TTY_OVERRUN)
- tty_insert_flip_char(&port->port, 0,
- TTY_OVERRUN);
- }
if (packet[2] == 0x01)
ssu100_update_msr(port, packet[3]);
Patches currently in stable-queue which might be from johan@xxxxxxxxxx are
queue-3.14/usb-ssu100-fix-overrun-error-reporting.patch
queue-3.14/usb-keyspan-fix-tty-line-status-reporting.patch
queue-3.14/usb-keyspan-fix-overrun-error-reporting.patch
queue-3.14/usb-serial-ftdi_sio-add-pids-for-matrix-orbital-products.patch
queue-3.14/usb-serial-cp210x-add-ids-for-cel-meshconnect-usb-stick.patch
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