linux-toradex.git/drivers/usb, branch v2.6.35.7

USB: serial/mos*: prevent reading uninitialized stack memory

2010-09-27T00:18:10+00:00

commit a0846f1868b11cd827bdfeaf4527d8b1b1c0b098 upstream.

The TIOCGICOUNT device ioctl in both mos7720.c and mos7840.c allows
unprivileged users to read uninitialized stack memory, because the
"reserved" member of the serial_icounter_struct struct declared on the
stack is not altered or zeroed before being copied back to the user.
This patch takes care of it.

Signed-off-by: Dan Rosenberg 
Signed-off-by: Greg Kroah-Hartman

usb: musb_debugfs: don't use the struct file private_data field with seq_files

2010-09-27T00:18:09+00:00

commit 024cfa5943a7e89565c60b612d698c2bfb3da66a upstream.

seq_files use the private_data field of a file struct for storing a seq_file structure,
data should be stored in seq_file's own private field (e.g. file->private_data->private)
Otherwise seq_release() will free the private data when the file is closed.

Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: Fixing crash when ACM probing interfaces with no endpoint descriptors.

2010-09-20T20:36:23+00:00

commit 577045c0a76e34294f902a7d5d60e90b04d094d0 upstream.

Certain USB devices, such as the Nokia X6 mobile phone, don't expose any
endpoint descriptors on some of their interfaces. If the ACM driver is forced
to probe all interfaces on a device the a NULL pointer dereference will occur
when the ACM driver attempts to use the endpoint of the alternative settings.
One way to get the ACM driver to probe all the interfaces is by using the
/sys/bus/usb/drivers/cdc_acm/new_id interface.

This patch checks that the endpoint pointer for the current alternate settings
is non-NULL before using it.

Signed-off-by: Toby Gray 
Cc: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: Add pseudo modem without AT command capabilities

2010-09-20T20:36:23+00:00

commit 5b239f0aebd4dd6f85b13decf5e18e86e35d57f0 upstream.

cdc-acm.c : Manage pseudo-modem without AT commands capabilities
  Enable to drive electronic simple gadgets based on microcontrolers.
  The Interface descriptor is like this:
    bInterfaceClass         2 Communications
    bInterfaceSubClass      2 Abstract (modem)
    bInterfaceProtocol      0 None

Signed-off-by: Philippe Corbes 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: Adding second ACM channel support for various Nokia and one Samsung phones

2010-09-20T20:36:22+00:00

commit 4035e45632c2a8bb4edae83c20447051bd9a9604 upstream.

S60 phones from Nokia and Samsung expose two ACM channels. The first is a modem
with a standard AT-command interface, which is picked up correctly by CDC-ACM.

The second ACM port is marked as having a vendor-specific protocol. This means
that the ACM driver will not claim the second channel by default.

This adds support for the second ACM channel for the following devices:
    Nokia E63
    Nokia E75
    Nokia 6760 Slide
    Nokia E52
    Nokia E55
    Nokia E72
    Nokia X6
    Nokia N97 Mini
    Nokia 5800 Xpressmusic
    Nokia E90
    Samsung GTi8510 (INNOV8)

Signed-off-by: Toby Gray 
Cc: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

USB: cxacru: Use a bulk/int URB to access the command endpoint

2010-09-20T20:36:22+00:00

commit 902ffc3c707c1d459ea57428a619a807cbe412f9 upstream.

The command endpoint is either a bulk or interrupt endpoint, but using
the wrong type of transfer causes an error if CONFIG_USB_DEBUG is
enabled after commit f661c6f8c67bd55e93348f160d590ff9edf08904, which
checks for this mismatch.

Detect which type of endpoint it is and use a bulk/int URB as
appropriate. There are other function calls specifying a bulk pipe,
but usb_clear_halt doesn't use the pipe type (only the endpoint) and
usb_bulk_msg auto-detects interrupt transfers.

Signed-off-by: Simon Arlott 
Signed-off-by: Greg Kroah-Hartman

usb: serial: mos7840: Add USB IDs to support more B&B USB/RS485 converters.

2010-09-20T20:36:21+00:00

commit 870408c8291015872a7a0b583673a9e56b3e73f4 upstream.

Add the USB IDs needed to support the B&B USOPTL4-4P, USO9ML2-2P, and
USO9ML2-4P.  This patch expands and corrects a typo in the patch sent
on 08-31-2010.

Signed-off-by: Dave Ludlow 
Signed-off-by: Greg Kroah-Hartman

usb: serial: mos7840: Add USB ID to support the B&B Electronics USOPTL4-2P.

2010-09-20T20:36:21+00:00

commit caf3a636a9f809fdca5fa746e6687096457accb1 upstream.

Add the USB ID needed to support B&B Electronic's 2-port, optically-isolated,
powered, USB to RS485 converter.

Signed-off-by: Dave Ludlow 
Signed-off-by: Greg Kroah-Hartman

USB: ftdi_sio: Added custom PIDs for ChamSys products

2010-09-20T20:36:20+00:00

commit 657373883417b2618023fd4135d251ba06a2c30a upstream.

Added the 0xDAF8 to 0xDAFF PID range for ChamSys limited USB interface/wing products

Signed-off-by: Luke Lowrey 
Signed-off-by: Greg Kroah-Hartman

usb: allow drivers to use allocated bandwidth until unbound

2010-09-20T20:36:20+00:00

commit 0791971ba8fbc44e4f476079f856335ed45e6324 upstream.

When using the remove sysfs file, the device configuration is set to -1
(unconfigured). This eventually unbind drivers with the bandwidth_mutex
held. Some drivers may call functions that hold said mutex, like
usb_reset_device. This is the case for rtl8187, for example. This will
lead to the same process holding the mutex twice, which deadlocks.

Besides, according to Alan Stern:
"The deadlock problem probably could be handled somehow, but there's a
separate issue: Until the usb_disable_device call finishes unbinding
the drivers, the drivers are free to continue using their allocated
bandwidth.  We musn't change the bandwidth allocations until after the
unbinding is done.  So this patch is indeed necessary."

Unbinding the driver before holding the bandwidth_mutex solves the
problem. If any operation after that fails, drivers are not bound again.
But that would be a problem anyway that the user may solve resetting the
device configuration to one that works, just like he would need to do in
most other failure cases.

Signed-off-by: Thadeu Lima de Souza Cascardo 
Cc: Alan Stern 
Cc: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman