linux-stable.git/drivers/usb/class, branch v3.18.22

cdc-acm: Add support of ATOL FPrint fiscal printers

2015-07-03T16:34:28+00:00

[ Upstream commit 15bf722e6f6c0b884521a0363204532e849deb7f ]

ATOL FPrint fiscal printers require usb_clear_halt to be executed
to work properly. Add quirk to fix the issue.

Signed-off-by: Alexey Sokolov 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

cdc-acm: prevent infinite loop when parsing CDC headers.

2015-05-17T23:12:37+00:00

[ Upstream commit 0d3bba0287d4e284c3ec7d3397e81eec920d5e7e ]

Phil and I found out a problem with commit:

  7e860a6e7aa6 ("cdc-acm: add sanity checks")

It added some sanity checks to ignore potential garbage in CDC headers but
also introduced a potential infinite loop.  This can happen at the first
loop iteration (elength = 0 in that case) if the description isn't a
DT_CS_INTERFACE or later if 'buffer[0]' is zero.

It should also be noted that the wrong length was being added to 'buffer'
in case 'buffer[1]' was not a DT_CS_INTERFACE descriptor, since elength was
assigned after that check in the loop.

A specially crafted USB device could be used to trigger this infinite loop.

Fixes: 7e860a6e7aa6 ("cdc-acm: add sanity checks")
Signed-off-by: Phil Turnbull 
Signed-off-by: Quentin Casasnovas 
CC: Sergei Shtylyov 
CC: Oliver Neukum 
CC: Adam Lee 
CC: 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

cdc-acm: add sanity checks

2015-05-17T23:12:37+00:00

[ Upstream commit 7e860a6e7aa62b337a61110430cd633db5b0d2dd ]

Check the special CDC headers for a plausible minimum length.
Another big operating systems ignores such garbage.

Signed-off-by: Oliver Neukum 
CC: stable@vger.kernel.org
Reviewed-by: Adam Lee 
Tested-by: Adam Lee 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

cdc-wdm: fix endianness bug in debug statements

2015-05-17T23:11:53+00:00

[ Upstream commit 323ece54e0761198946ecd0c2091f1d2bfdfcb64 ]

Values directly from descriptors given in debug statements
must be converted to native endianness.

Signed-off-by: Oliver Neukum 
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

cdc-acm: memory leak in error case

2015-01-16T14:59:52+00:00

commit d908f8478a8d18e66c80a12adb27764920c1f1ca upstream.

If probe() fails not only the attributes need to be removed
but also the memory freed.

Reported-by: Ahmed Tamrawi 
Signed-off-by: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: check for valid interfaces

2015-01-16T14:59:51+00:00

commit 403dff4e2c94f275e24fd85f40b2732ffec268a1 upstream.

We need to check that we have both a valid data and control inteface for both
types of headers (union and not union.)

References: https://bugzilla.kernel.org/show_bug.cgi?id=83551
Reported-by: Simon Schubert <2+kernel@0x2c.org>
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: add quirk for control-line state requests

2014-11-06T20:25:40+00:00

Add new quirk for devices that cannot handle control-line state
requests.

Note that we currently send these requests to all devices, regardless of
whether they claim to support it, but that errors are only logged if
support is claimed.

Since commit 0943d8ead30e ("USB: cdc-acm: use tty-port dtr_rts"), which
only changed the timings for these requests slightly, this has been
reported to cause occasional firmware crashes on Simtec Electronics
Entropy Key devices after re-enumeration. Enable the quirk for this
device.

Reported-by: Nix 
Tested-by: Nix 
Cc: stable 	# v3.16
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: only raise DTR on transitions from B0

2014-11-05T19:25:25+00:00

Make sure to only raise DTR on transitions from B0 in set_termios.

Also allow set_termios to be called from open with a termios_old of
NULL. Note that DTR will not be raised prematurely in this case.

Cc: stable 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

cdc-acm: ensure that termios get set when the port is activated

2014-11-03T23:26:15+00:00

The driver wasn't properly configuring the hardware for the current
termios settings under all conditions.  Ensure that termios are
written to the device when the port is activated.

Signed-off-by: Jim Paris 
Reviewed-by: Johan Hovold 
Acked-by: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: add device id for GW Instek AFG-2225

2014-11-03T23:26:15+00:00

Add device-id entry for GW Instek AFG-2225, which has a byte swapped
bInterfaceSubClass (0x20).

Reported-by: Karl Palsson 
Cc: stable 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman