linux/drivers/usb
Alan Stern e534c5b831 USB: fix regression occurring during device removal
This patch (as1476) fixes a regression introduced by
fccf4e8620 (USB: Free bandwidth when
usb_disable_device is called).  usb_disconnect() grabs the
bandwidth_mutex before calling usb_disable_device(), which calls down
indirectly to usb_set_interface(), which tries to acquire the
bandwidth_mutex.

The fix causes usb_set_interface() to return early when it is called
for an interface that has already been unregistered, which is what
happens in usb_disable_device().

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-01 14:20:39 -07:00
..
atm Fix common misspellings 2011-03-31 11:26:23 -03:00
c67x00 Fix common misspellings 2011-03-31 11:26:23 -03:00
class USB: cdc-acm: Adding second ACM channel support for Nokia E7 and C7 2011-06-06 15:59:41 -07:00
core USB: fix regression occurring during device removal 2011-07-01 14:20:39 -07:00
early USB: EHCI: Support controllers with big endian capability regs 2011-05-03 11:43:21 -07:00
gadget USB: fsl_udc_core: fix build breakage when building for ARM arch 2011-07-01 14:20:39 -07:00
host usb: r8a66597-hcd: fix cannot detect low/full speed device 2011-06-27 13:46:44 -07:00
image Fix common misspellings 2011-03-31 11:26:23 -03:00
misc Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2011-05-23 12:33:02 -07:00
mon USB: usbmon: fix-up docs and text API for sparse ISO 2011-02-04 11:46:57 -08:00
musb usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFO 2011-06-09 12:01:03 +03:00
otg USB: TWL6025 allow different regulator name 2011-05-27 10:49:30 +01:00
renesas_usbhs usb/renesas_usbhs: free uep on removal 2011-06-06 16:28:04 -07:00
serial USB: Add new FT232H chip to drivers/usb/serial/ftdi_sio.c 2011-06-27 13:46:44 -07:00
storage usb-storage: redo incorrect reads 2011-06-07 09:05:42 -07:00
wusbcore Fix common misspellings 2011-03-31 11:26:23 -03:00
Kconfig USB: EHCI: Add bus glue for GRLIB GRUSBHC controller 2011-05-03 11:43:48 -07:00
Makefile USB: fix build of FSL MPH DR OF platform driver 2011-05-02 16:59:37 -07:00
README
usb-skeleton.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00

To understand all the Linux-USB framework, you'll use these resources:

    * This source code.  This is necessarily an evolving work, and
      includes kerneldoc that should help you get a current overview.
      ("make pdfdocs", and then look at "usb.pdf" for host side and
      "gadget.pdf" for peripheral side.)  Also, Documentation/usb has
      more information.

    * The USB 2.0 specification (from www.usb.org), with supplements
      such as those for USB OTG and the various device classes.
      The USB specification has a good overview chapter, and USB
      peripherals conform to the widely known "Chapter 9".

    * Chip specifications for USB controllers.  Examples include
      host controllers (on PCs, servers, and more); peripheral
      controllers (in devices with Linux firmware, like printers or
      cell phones); and hard-wired peripherals like Ethernet adapters.

    * Specifications for other protocols implemented by USB peripheral
      functions.  Some are vendor-specific; others are vendor-neutral
      but just standardized outside of the www.usb.org team.

Here is a list of what each subdirectory here is, and what is contained in
them.

core/		- This is for the core USB host code, including the
		  usbfs files and the hub class driver ("khubd").

host/		- This is for USB host controller drivers.  This
		  includes UHCI, OHCI, EHCI, and others that might
		  be used with more specialized "embedded" systems.

gadget/		- This is for USB peripheral controller drivers and
		  the various gadget drivers which talk to them.


Individual USB driver directories.  A new driver should be added to the
first subdirectory in the list below that it fits into.

image/		- This is for still image drivers, like scanners or
		  digital cameras.
../input/	- This is for any driver that uses the input subsystem,
		  like keyboard, mice, touchscreens, tablets, etc.
../media/	- This is for multimedia drivers, like video cameras,
		  radios, and any other drivers that talk to the v4l
		  subsystem.
../net/		- This is for network drivers.
serial/		- This is for USB to serial drivers.
storage/	- This is for USB mass-storage drivers.
class/		- This is for all USB device drivers that do not fit
		  into any of the above categories, and work for a range
		  of USB Class specified devices. 
misc/		- This is for all USB device drivers that do not fit
		  into any of the above categories.