USB: serial: ftd_sio: implement sysrq handling on break

Change driver to make use of the new functions in
include/linux/usb/serial.h so as to allow the driver to handle the
sysrq

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index fc527de73465..fc423583eede 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -2120,6 +2120,7 @@ static void ftdi_process_read(struct work_struct *work)
                 if (data[packet_offset+1] & FTDI_RS_BI) {
                         error_flag = TTY_BREAK;
                         dbg("BREAK received");
+                        usb_serial_handle_break(port);
                 }
                 if (data[packet_offset+1] & FTDI_RS_PE) {
                         error_flag = TTY_PARITY;
@@ -2134,8 +2135,11 @@ static void ftdi_process_read(struct work_struct *work)
                                 /* Note that the error flag is duplicated for
                                    every character received since we don't know
                                    which character it applied to */
-                                tty_insert_flip_char(tty,
-                                        data[packet_offset + i], error_flag);
+                                if (!usb_serial_handle_sysrq_char(port,
+                                                data[packet_offset + i]))
+                                        tty_insert_flip_char(tty,
+                                                data[packet_offset + i],
+                                                error_flag);
                         }
                         need_flip = 1;
                 }