2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 03:33:59 +08:00
linux-next/drivers/usb
Stefan Wahren 991d5add50 usb: chipidea: host: fix NULL ptr dereference during shutdown
After commit b09b5224fe ("usb: chipidea: implement platform shutdown
callback") and commit 43a404577a ("usb: chipidea: host: set host to
be null after hcd is freed") a NULL pointer dereference is caused
on i.MX23 during shutdown. So ensure that role is set to CI_ROLE_END and
we finish interrupt handling before the hcd is deallocated. This avoids
the NULL pointer dereference.

Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: b09b5224fe ("usb: chipidea: implement platform shutdown callback")
Signed-off-by: Peter Chen <peter.chen@nxp.com>
2016-10-25 16:14:32 +08:00
..
atm usb: atm: usbatm: don't print on ENOMEM 2016-08-30 19:17:36 +02:00
c67x00
chipidea usb: chipidea: host: fix NULL ptr dereference during shutdown 2016-10-25 16:14:32 +08:00
class Revert "usbtmc: convert to devm_kzalloc" 2016-09-28 11:51:30 +02:00
common usb: patches for v4.9 merge window 2016-09-14 20:37:50 +02:00
core Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
dwc2 Revert "usb: dwc2: gadget: fix TX FIFO size and address initialization" 2016-10-18 14:21:40 +03:00
dwc3 usb: dwc3: Fix size used in dma_free_coherent() 2016-10-17 12:35:48 +03:00
early treewide: remove redundant #include <linux/kconfig.h> 2016-10-11 15:06:33 -07:00
gadget usb: gadget: f_fs: stop sleeping in ffs_func_eps_disable 2016-10-17 12:34:25 +03:00
host usb: increase ohci watchdog delay to 275 msec 2016-10-24 14:30:32 +02:00
image usb: microtek: Use "foo *bar" instead of "foo * bar". 2016-06-07 22:18:39 -07:00
isp1760 usb: Remove unnecessary space before open square bracket. 2016-05-09 13:08:46 +02:00
misc usb: misc: legousbtower: Fix NULL pointer deference 2016-09-21 18:31:18 +02:00
mon usb: core: rename mutex usb_bus_list_lock to usb_bus_idr_lock 2016-02-06 21:55:57 -08:00
musb usb: musb: Call pm_runtime from musb_gadget_queue 2016-10-24 14:29:08 +02:00
phy usb: patches for v4.9 merge window 2016-09-14 20:37:50 +02:00
renesas_usbhs usb: renesas_usbhs: add wait after initialization for R-Car Gen3 2016-10-24 14:35:46 +02:00
serial USB: serial: fix potential NULL-dereference at probe 2016-10-21 16:47:17 +02:00
storage scsi: introduce a quirk for false cache reporting 2016-09-13 08:08:24 +02:00
usbip usb: Kconfig: using select for USB_COMMON dependency 2016-09-27 12:20:17 +02:00
wusbcore wusb: fix error return code in wusb_prf() 2016-10-19 15:28:29 +02:00
Kconfig usb: Kconfig: using select for USB_COMMON dependency 2016-09-27 12:20:17 +02:00
Makefile usb: fsl: drop USB_FSL_MPH_DR_OF Kconfig symbol 2016-03-04 15:14:29 +02:00
README
usb-skeleton.c usb: usb-skeleton: don't print on ENOMEM 2016-08-30 19:17:39 +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 ("hub_wq").

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.