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| author | Johan Hovold <johan@kernel.org> | 2014-11-18 11:25:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-12-06 15:05:47 -0800 |
| commit | 20bec8eb8d2e40328c9278128e7082ec4bffc6d6 (patch) | |
| tree | fa5ff964a8111c82643e927ff070807609ab84f0 | |
| parent | 8743a13960c87427b29e2c8b3b6ea2c6f9313f7c (diff) | |
| download | lwn-20bec8eb8d2e40328c9278128e7082ec4bffc6d6.tar.gz lwn-20bec8eb8d2e40328c9278128e7082ec4bffc6d6.zip | |
USB: ssu100: fix overrun-error reporting
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@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/serial/ssu100.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index 5b62dbbdf996..8f5f36134864 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -495,10 +495,9 @@ static void ssu100_update_lsr(struct usb_serial_port *port, u8 lsr, 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(struct urb *urb) 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]); |