linux/drivers/usb
Thomas Pugliese ec58fad1fe wusbcore: fix kernel panic when disconnecting a wireless USB->serial device
This patch fixes a kernel panic that can occur when disconnecting a
wireless USB->serial device.  When the serial device disconnects, the
device cleanup procedure ends up calling usb_hcd_disable_endpoint on the
serial device's endpoints.  The wusbcore uses the ABORT_RPIPE command to
abort all transfers on the given endpoint but it does not properly give
back the URBs when the transfer results return from the HWA.  This patch
prevents the transfer result processing code from bailing out when it sees
a WA_XFER_STATUS_ABORTED result code so that these urbs are flushed
properly by usb_hcd_disable_endpoint.  It also updates wa_urb_dequeue to
handle the case where the endpoint has already been cleaned up when
usb_kill_urb is called which is where the panic originally occurred.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12 13:45:26 -07:00
..
atm drivers: avoid parsing names as kthread_run() format strings 2013-07-03 16:07:41 -07:00
c67x00 usb: c67x00 RetryCnt value in c67x00 TD should be 3 2013-03-07 12:31:37 +08:00
chipidea usb: chipidea: fix the build error with randconfig 2013-07-29 10:54:31 -07:00
class USB: cdc-acm: remove unneeded spin_lock_irqsave/restore on write path 2013-06-17 13:37:07 -07:00
core usb: core: don't try to reset_device() a port that got just disconnected 2013-07-31 09:51:45 -07:00
dwc3 usb: dwc3: USB_DWC3 should depend on HAS_DMA 2013-07-15 13:05:27 +03:00
early
gadget usb: gadget: udc-core: fix the typo of udc state attribute 2013-07-29 14:15:38 +03:00
host USB: EHCI: accept very late isochronous URBs 2013-08-12 13:45:26 -07:00
image USB: regroup all depends on USB within an if USB block 2013-04-09 16:49:07 -07:00
misc USB: misc: Add Manhattan Hi-Speed USB DVI Converter to sisusbvga 2013-07-22 11:29:26 -07:00
mon USB: regroup all depends on USB within an if USB block 2013-04-09 16:49:07 -07:00
musb usb: musb: fix resource passed from glue layer to musb 2013-07-17 10:51:22 +03:00
phy usb: phy: omap-usb3: fix dpll clock index 2013-07-15 13:05:30 +03:00
renesas_usbhs usb: renesas_usbhs: gadget: remove extra check on udc_stop 2013-07-15 13:01:24 +03:00
serial USB: serial: ftdi_sio: add more RT Systems ftdi devices 2013-07-29 13:38:38 -07:00
storage USB: storage: Add MicroVault Flash Drive to unusual_devs 2013-07-22 11:29:26 -07:00
wusbcore wusbcore: fix kernel panic when disconnecting a wireless USB->serial device 2013-08-12 13:45:26 -07:00
Kconfig USB: Check for ARCH_EXYNOS separately 2013-06-19 01:25:48 +09:00
Makefile usb host: Faraday USB2.0 FUSBH200-HCD driver 2013-05-17 10:12:52 -07:00
README
usb-common.c usb: add devicetree helpers for determining dr_mode and phy_type 2013-06-17 13:47:09 -07:00
usb-skeleton.c USB: usb-skeleton.c: fix blocked forever in skel_read 2013-03-25 13:32:20 -07:00

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.