From eba0e3c3a0ba7b96f01cbe997680f6a4401a0bfc Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 26 Mar 2013 10:49:55 +0800 Subject: USB: serial: fix hang when opening port Johan's 'fix use-after-free in TIOCMIWAIT' patchset[1] introduces one bug which can cause kernel hang when opening port. This patch initialized the 'port->delta_msr_wait' waitqueue head to fix the bug which is introduced in 3.9-rc4. [1], http://marc.info/?l=linux-usb&m=136368139627876&w=2 Cc: stable Signed-off-by: Ming Lei Acked-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/usb-serial.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/usb/serial') diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 2e70efa08b77..5d9b178484fd 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -903,6 +903,7 @@ static int usb_serial_probe(struct usb_interface *interface, port->port.ops = &serial_port_ops; port->serial = serial; spin_lock_init(&port->lock); + init_waitqueue_head(&port->delta_msr_wait); /* Keep this for private driver use for the moment but should probably go away */ INIT_WORK(&port->work, usb_serial_port_work); -- cgit v1.2.1 From 482b0b5d82bd916cc0c55a2abf65bdc69023b843 Mon Sep 17 00:00:00 2001 From: Konstantin Holoborodko Date: Fri, 29 Mar 2013 00:06:13 +0900 Subject: usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BD It enhances the driver for FTDI-based USB serial adapters to recognize Mitsubishi Electric Corp. USB/RS422 Converters as FT232BM chips and support them. https://search.meau.com/?q=FX-USB-AW Signed-off-by: Konstantin Holoborodko Tested-by: Konstantin Holoborodko Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio_ids.h | 7 +++++++ 2 files changed, 8 insertions(+) (limited to 'drivers/usb/serial') diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index d4809d551473..9886180e45f1 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -640,6 +640,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) }, { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) }, + { USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 9d359e189a64..e79861eeed4c 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -583,6 +583,13 @@ #define CONTEC_VID 0x06CE /* Vendor ID */ #define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */ +/* + * Mitsubishi Electric Corp. (http://www.meau.com) + * Submitted by Konstantin Holoborodko + */ +#define MITSUBISHI_VID 0x06D3 +#define MITSUBISHI_FXUSB_PID 0x0284 /* USB/RS422 converters: FX-USB-AW/-BD */ + /* * Definitions for B&B Electronics products. */ -- cgit v1.2.1