linux-stable.git/drivers/usb/class, branch v3.1.3

USB: cdc-acm: Fix disconnect() vs close() race

2011-11-26T17:08:38+00:00

commit 5dc2470c602da8851907ec18942cd876c3b4ecc1 upstream.

There's a race between the USB disconnect handler and the TTY close
handler which may cause the acm object to be freed while it's still
being used. This may lead to things like

http://article.gmane.org/gmane.linux.usb.general/54250

and

https://lkml.org/lkml/2011/5/29/64

This is the simplest fix I could come up with. Holding on to open_mutex
while closing the TTY device prevents acm_disconnect() from freeing the
acm object between acm->port.count drops to 0 and the TTY side of the
cleanups are finalized.

Signed-off-by: Havard Skinnemoen 
Cc: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

usb: cdc-acm: Owen SI-30 support

2011-11-11T17:42:37+00:00

commit 65e52f41fa944cef2e6d4222b8c54f46cc575214 upstream.

here is the patch to support Owen SI-30 device.
This is a pulse counter controller.
http://www.owen.ru/en/catalog/93788515

usb-drivers output:
T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  4 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=02(commc) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=03eb ProdID=0030 Rev=01.01
C:  #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=00 Driver=cdc_acm
I:  If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm

This patch is installed on my home system which receives data from this
controller connected to cold water counter.

Signed-off-by: Denis Pershin 
Signed-off-by: Greg Kroah-Hartman

USB: assign instead of equal in usbtmc.c

2011-08-08T19:34:45+00:00

Assign operator instead of equality test in the usbtmc_ioctl_abort_bulk_in() function.

Signed-off-by: Maxim A. Nikulin 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

usb/class: use printk_ratelimited() instead of printk_ratelimit()

2011-07-01T21:43:24+00:00

Since printk_ratelimit() shouldn't be used anymore (see comment in
include/linux/printk.h), replace it with printk_ratelimited()

Signed-off-by: Manuel Zerpies 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: Adding second ACM channel support for Nokia E7 and C7

2011-06-06T22:59:41+00:00

This adds the Nokia E7 and C7 to the list of devices in cdc-acm, allowing
the secondary ACM channel on the device to be exposed. Without this patch
the ACM driver won't claim this secondary channel as it's marked as
having a vendor-specific protocol.

Signed-off-by: Toby Gray 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

USB: cdc_acm: Fix oops when Droids MuIn LCD is connected

2011-05-11T22:14:28+00:00

The Droids MuIn LCD operates like a serial remote terminal.
Data received are displayed directly on the LCD. This patch
fixes the kernel null pointer oops when it is plugged in.

Add NO_DATA_INTERFACE quirk to tell the driver that "control"
and "data" interfaces are not separated for this device, which
prevents dereferencing a null pointer in the device probe code.

Signed-off-by: Erik Slagter 
Signed-off-by: Maxin B. John 
Tested-by: Erik Slagter 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-wdm: reset handling according to new requirements

2011-04-30T00:04:40+00:00

This patch
- ensures no IO takes place during resets
- reports resets to user space

Signed-off-by: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: re-write read processing

2011-04-13T23:18:34+00:00

Kill rx tasklet, which is no longer needed, and re-write read processing.

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

USB: cdc-acm: clean up read urb allocation

2011-04-13T23:18:33+00:00

Allocate read urbs and read buffers in the same loop during probe.

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

USB: cdc-acm: clean up open error handling

2011-04-13T23:18:33+00:00

No need to kill ctrl urb on errors as this is done later during close.

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