From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold Subject: [PATCH 3.10 23/45] USB: ssu100: fix overrun-error reporting Date: Fri, 5 Dec 2014 14:45:06 -0800 Message-Id: <20141205223320.398164211@linuxfoundation.org> In-Reply-To: <20141205223316.738290875@linuxfoundation.org> References: <20141205223316.738290875@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold 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 Signed-off-by: Greg Kroah-Hartman --- 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 @@ -495,10 +495,9 @@ 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); } } @@ -516,12 +515,8 @@ 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]);