linux/drivers/usb
Colin Ian King bf7f547ecd usb: core: fix memory leak on port_dev_path allocation
Currently the allocation of port_dev_path from the call to
kobject_get_path is not being kfree'd, causing a memory leak. Fix
this by kfree'ing this at the end of the function. Add an extra
error exit path to fix one of the early leaks when envp[0] fails
to be allocated.

Detected by CoverityScan, CID#1473771 ("Resource Leak")

Fixes: 201af55da8 ("usb: core: added uevent for over-current")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 16:02:29 +02:00
..
atm USB: atm: fix up some remaining DEVICE_ATTR() usage 2018-01-24 08:49:52 +01:00
c67x00
chipidea usb: chipidea: Fix otg event handler 2018-09-20 17:04:22 +08:00
class Merge 4.19-rc7 into usb-next 2018-10-08 15:40:42 +02:00
common usb: roles: Take care of driver module reference counting 2018-09-20 13:20:24 +02:00
core usb: core: fix memory leak on port_dev_path allocation 2018-10-09 16:02:29 +02:00
dwc2 usb: dwc2: disable power_down on rockchip devices 2018-10-05 10:50:14 +03:00
dwc3 usb: dwc3: Fix spelling of 'optimizations' 2018-10-02 10:43:51 +03:00
early usb: early: Correct the endpoint type value for bulk in endpoint 2017-12-07 16:03:15 +01:00
gadget USB: net2280: Remove ->disconnect() callback from net2280_pullup() 2018-10-05 10:50:23 +03:00
host Merge 4.19-rc7 into usb-next 2018-10-08 15:40:42 +02:00
image USB/PHY patches for 4.15-rc1 2017-11-13 21:14:07 -08:00
isp1760 usb: isp1760: remove redundant variable 'selector' 2018-07-13 15:41:56 +02:00
misc Merge 4.19-rc4 into usb-next 2018-09-16 22:44:14 +02:00
mon USB: mon: use ktime_get_real_ts64 instead of getnstimeofday64 2018-06-25 21:58:26 +08:00
mtu3 usb: mtu3: disable vbus rise/fall interrupts of ltssm 2018-10-02 10:39:02 +03:00
musb usb: musb: dsps: do not disable CPPI41 irq in driver teardown 2018-09-20 12:40:14 +02:00
phy usb: phy: mxs: fix spelling mistake "stardard" -> "standard" 2018-10-02 10:31:23 +03:00
renesas_usbhs usb: renesas_usbhs: add support for R-Car E3 2018-10-02 10:48:08 +03:00
roles usb: roles: intel_xhci: Enable runtime PM 2018-05-24 18:17:00 +02:00
serial USB: serial: simple: add Motorola Tetra MTP6550 id 2018-09-24 15:30:16 +02:00
storage USB: STORAGE: ISD200 Fixed coding style issue "space required in for loop" 2018-09-20 15:10:29 +02:00
typec usb: typec: remove set but not used variables 'snk_ma, min_mv' 2018-10-02 12:05:30 -07:00
usbip usb: usbip: remove redundant pointer ep 2018-07-13 15:41:55 +02:00
wusbcore USB: wusbcore: Switch to bitmap_zalloc() 2018-09-10 20:08:21 +02:00
Kconfig usb: select USB_COMMON for usb role switch config 2018-04-22 15:23:37 +02:00
Makefile usb: roles: Add Intel xHCI USB role switch driver 2018-03-22 13:49:27 +01:00
README
usb-skeleton.c usb: usb-skeleton: use irqsave() in USB's complete callback 2018-06-28 19:36:06 +09:00

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.