This patch creates a new driver, sierra.c, that supports the new
non-composite Sierra Wireless WWAN devices. The older Sierra
Wireless and Airprime devices are supported in airprime.c.
Signed-off-by: NKevin Lloyd  <linux@sierrawireless.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch limits the amount of outstanding 'write' data that can be
queued up for the ftdi_sio driver, to prevent userspace DoS attacks (or
simple accidents) that use up all the system memory by writing lots of
data to the serial port.

The original patch was by Guillaume Autran, who in turn based it on the
same mechanism implemented in the 'visor' driver.  I (Ian Abbott)
re-targeted the patch to the latest sources, fixed a couple of errors,
renamed his new structure members, and updated the implementations of
the 'write_room' and 'chars_in_buffer' methods to take account of the
number of outstanding 'write' bytes.  It seems to work fine, though at
low baud rates it is still possible to queue up an amount of data that
takes an age to shift (a job for another day!).
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The anti user-DoS mechanism in the USB serial 'visor' driver can fail in
the following way:

visor_open: priv->outstanding_urbs = 0
visor_write: ++priv->outstanding_urbs
visor_close:
visor_open: priv->outstanding_urbs = 0
visor_write_bulk_callback: --priv->outstanding_urbs

So priv->outstanding_urbs ends up as (unsigned long)(-1).  Not good!

I haven't seen this happen with the visor driver as I don't have the
hardware, but I have seen it while testing a patch to implement the same
functionality in the ftdi_sio driver (patch not yet submitted).

The fix is pretty simple: don't reinitialize outstanding_urbs in
visor_open.  (Again, I haven't tested the fix in visor, but I have
tested it in ftdi_sio.)
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The Susteen Datapilot cable
(http://www.susteen.com/productdetail/71/producthl/Notempty) has an
internal pl2303 to communicate with a set of dummy connector-ends that
connect to a variety of cell phones. I've found that it works right out
of the box by simply adding the product/vendor id to the pl2303 driver.
Signed-off-by: NMatt Meno <mmeno@idealcorp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch fixes blatant leaks in visor driver and makes it report
mode sensible things in ->write_room (this is only needed if your visor
is a terminal though).

It is made to fit into 80 columns with a temporary variable.
Might even save a few instructions...
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This fix addresses two issues:
- Unattached port structures were not freed
- My initial fix for crash when eventd runs a work in a freed port
  did not go far enough
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Text from the back of the box, for your information/amusement:

 USB DATA CABLE
   FOR K700 Series

 The USB Cable is an ideal link between your mobile phone and PC. Employing
 the user-friendiy [sic] USB standard,its capacity for rapid data transfer enables functions
 such as synchronization of phone book and calendar,as well as Internet browsing via
 a modem-enabled phone.Autual [sic] connection speed is dependent on phone capacity.

 MADE IN CHINA

From: Peter Moulder <Peter.Moulder@infotech.monash.edu.au>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NJörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

Remove TTY_DONT_FLIP tty flag.  This flag was introduced in 2.1.X kernels
to prevent the N_TTY line discipline functions read_chan() and
n_tty_receive_buf() from running at the same time.  2.2.15 introduced
tty->read_lock to protect access to the N_TTY read buffer, which is the
only state requiring protection between these two functions.

The current TTY_DONT_FLIP implementation is broken for SMP, and is not
universally honored by drivers that send data directly to the line
discipline receive_buf function.

Because TTY_DONT_FLIP is not necessary, is broken in implementation, and is
not universally honored, it is removed.
Signed-off-by: NPaul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

I've always found this flag confusing.  Now that devfs is no longer around, it
has been renamed, and the documentation for when this flag should be used has
been updated.

Also fixes all drivers that use this flag.
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Also fixes all drivers that set this field.
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under drivers/.
Acked-by: NCorey Minyard <minyard@mvista.com>
Cc: Ben Collins <bcollins@debian.org>
Acked-by: NRoland Dreier <rolandd@cisco.com>
Cc: Alasdair Kergon <dm-devel@redhat.com>
Cc: Gerd Knorr <kraxel@bytesex.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frank Pavlic <fpavlic@de.ibm.com>
Acked-by: NMatthew Wilcox <matthew@wil.cx>
Cc: Andrew Vasquez <linux-driver@qlogic.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: NAkinobu Mita <mita@miraclelinux.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Some usbserial functions returns -EINVAL if the port doesn't exist or if
it's not opened. However, the right error code for such situations is
-ENODEV.
Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

If either the driver's open() method or try_module_get() fails, we need to
set 'tty->driver_data' and 'port->tty' to NULL in serial_open(), otherwise
we'll get an OOPS in usb_device_disconnect() when the device is disconnected.
Signed-off-by: NFrank Gevaerts <frank.gevaerts@fks.be>
Acked-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Al Borchers suggested to do this in his review of my previous patch.
I guess that I skipped this initially because of my visceral dislike
of sizeof(data). But in this case it seems well localized.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Adds vendor & product IDs to drivers/usb/serial/airprime.c for Kyocera
Wireless KPC650/Passport EV-DO/1xRTT PC Cards.
Signed-off-by: NTimothy Sipples <Timothy.Sipples@us.ibm.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

While an Edgeport is allocating individual port structures, if kmalloc
returns NULL, the serial structure is freed and -ENOMEM, but the ports
allocated before the failure are not freed.  This patch addresses that
condition.
Signed-off-by: NChristopher Lund <docmax@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch extends the "option" driver with a few more devices, some of
which are actually connected to USB the "right" way -- as opposed to
doing it via PCMCIA and OHCI.
Signed-Off-By: NMatthias Urlichs <smurf@debian.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Recognize the Sierra Wireless MC5720.
Signed-off-by: NJeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Attached patch fixes spurious errors during firmware load.
Signed-off-by: NStuart MacDonald <stuartm@connecttech.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch adds support for Yost Engineering Inc's ServoCenter 3.1 USB
product to the ftdi_sio driver's device ID table.  The PID was supplied
by Aaron Prose of Yost Engineering on the ftdi-usb-sio-devel list.  The
PID 0xE050 matches the Windows INF files for this device.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Wait for the scheduled work to finish before freeing memory, prevent oops.
http://bugzilla.kernel.org/show_bug.cgi?id=6596Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Remove the silly trailing backslash.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add a couple of supported devices into the help message.

It's a long story... I promised this comment changed to a user long ago,
so I'd like to have that promise kept. In reality though, nobody is
likely to read this anyway.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I'm going to throw schedule_work away, it's retarded. But for starters,
let's have it encapsulated.

Also, generic and whiteheat were both calling usb_serial_port_softint
and scheduled work. Only one was necessary.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Clean up the unicode handling in io_edgeport. Make get_string size-limited.
Signed-off-by: NPete Zaitcev <zaitcev@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

By the way I have to ask you to add new (vid,pid) pair to cp2101 driver.

This device is argussoft's avr in-system programmer AS3M,
http://atmel.argussoft.ru/hard.htm
it's based on cp2101 chip and works pretty well with the linux driver.

It could be used with argussoft's `asisp1109.exe'
(http://atmel.argussoft.ru/download/software/as-tools.soft/asisp.zip)
tool run under wine.
Signed-off-by: NVitja Makarov <vitja.makarov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Prevent sending further output to a USB-serial console after the dongle is
disconnected, take care not to leak kref.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Prevent ENODEV on a /dev/ttyUSBx, used as a USB-serial console.

From: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Prevent NULL dereference when used as a USB-serial console.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Append Carriage-Returns after Line-Feeds, analogous to the serial driver.

From: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I introduced this way back in 2.6.13 when adding the port lock logic.
This device talks out through different "ports" all at the same time, so
the lock logic was wrong, preventing any data from ever being sent
properly.

Thanks a lot to Bernhard Reiter <bernhard@intevation.de> for being
patient and helping with debugging this.

Cc: Bernhard Reiter <bernhard@intevation.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Based on Simon's original driver, with some minor code cleanups and
tidying by me.

Cc: Simon Schulz <simon@auctionant.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

If serial_open() fails at the port assignment or mutex_lock_interruptible()
is interrupted, the 'serial' object will never be freed.

We should call kref_put() when those errors happens.
Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

If the device is disconnected while serial_open() is executing and
either try_module_get() or the device specific open function fails, the
kref_put() call in the 'bailout_kref_put' label will free the memory
pointed out by 'port'.

The subsequent dereferences in the 'bailout_kref_put' label will be
invalid.

The fix is just to assure kref_put() is called after any 'port' usage.
Signed-off-by: NLuiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This adds the Sierra Wireless card to airprime.c.

I tested this on my laptop.
Signed-off-by: NKen Brush <ken@cgi101.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NRazvan Gavril <razvan.g@plutohome.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch adds support for ACG Identification Technologies GmbH's HF
Dual ISO Reader (an RFID tag reader) to the ftdi_sio driver's device ID
table.  The product ID was supplied by anotonios (anton at goto10 dot
org) on the ftdi-usb-sio-devel list and subsequently verified by myself
(Ian Abbott).
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>