linux/drivers/usb/core
Eugeniu Rosca 1f8b39bc99 usb: core: port: do error out if usb_autopm_get_interface() fails
Reviewing a fresh portion of coverity defects in USB core
(specifically CID 1458999), Alan Stern noted below in [1]:

On Tue, Feb 25, 2020 at 02:39:23PM -0500, Alan Stern wrote:
 > A revised search finds line 997 in drivers/usb/core/hub.c and lines
 > 216, 269 in drivers/usb/core/port.c.  (I didn't try looking in any
 > other directories.)  AFAICT all three of these should check the
 > return value, although a error message in the kernel log probably
 > isn't needed.

Factor out the usb_port_runtime_{resume,suspend}() changes into a
standalone patch to allow conflict-free porting on top of stable v3.9+.

[1] https://lore.kernel.org/lkml/Pine.LNX.4.44L0.2002251419120.1485-100000@iolanthe.rowland.org

Fixes: 971fcd492c ("usb: add runtime pm support for usb port device")
Cc: stable@vger.kernel.org # v3.9+
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20200226175036.14946-3-erosca@de.adit-jv.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-04 10:58:16 +01:00
..
buffer.c usb: add a hcd_uses_dma helper 2019-08-15 15:18:05 +02:00
config.c USB: core: clean up endpoint-descriptor parsing 2020-02-10 11:14:22 -08:00
devices.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
devio.c USB: usbfs: Always unlink URBs in reverse order 2020-01-17 17:57:04 +01:00
driver.c USB: add support for dev_groups to struct usb_device_driver 2019-08-07 14:05:04 +02:00
endpoint.c USB: core: move existing SPDX tags to top of the file 2017-11-03 10:12:26 +01:00
file.c USB: core: Fix races in character device registration and deregistraion 2019-08-12 22:47:24 +02:00
generic.c usbfs: Add ioctls for runtime power management 2019-08-09 07:55:45 +02:00
hcd-pci.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
hcd.c USB: Fix incorrect DMA allocations for local memory pool drivers 2019-12-11 09:06:41 +01:00
hub.c usb: core: hub: do error out if usb_autopm_get_interface() fails 2020-03-04 10:58:16 +01:00
hub.h USB: hub: Fix the broken detection of USB3 device in SMSC hub 2020-02-10 11:08:26 -08:00
Kconfig usb: remove redundant 'default n' from Kconfig-s 2019-05-21 10:06:22 +02:00
ledtrig-usbport.c USB: leds: fix regression in usbport led trigger 2019-01-18 09:55:05 +01:00
Makefile usb: core: add a wrapper for the USB PHYs on the HCD 2018-03-09 09:43:53 -08:00
message.c USB: CDC: fix sanity checks in CDC union parser 2019-08-15 14:49:16 +02:00
notify.c USB: core: Remove usbfs_mutex 2019-06-26 10:28:09 +08:00
of.c usb: Change usb_of_get_companion_dev() place to usb/common 2018-09-10 20:40:29 +02:00
otg_whitelist.h USB: core: Remove redundant license text 2017-11-04 11:55:39 +01:00
phy.c usb: core: phy: add support for PHY calibration 2019-09-03 15:54:55 +02:00
phy.h usb: core: phy: add support for PHY calibration 2019-09-03 15:54:55 +02:00
port.c usb: core: port: do error out if usb_autopm_get_interface() fails 2020-03-04 10:58:16 +01:00
quirks.c usb: quirks: add NO_LPM quirk for Logitech Screen Share 2020-03-04 10:56:26 +01:00
sysfs.c usb: setup authorized_default attributes using usb_bus_notify 2019-08-08 16:07:34 +02:00
urb.c usb: core: urb: fix URB structure initialization function 2019-12-10 11:41:19 +01:00
usb-acpi.c usb: assign ACPI companions for embedded USB devices 2019-01-25 08:46:26 +01:00
usb.c usb: remove commented out dma wrappers 2019-09-03 15:26:12 +02:00
usb.h USB: core: add endpoint-blacklist quirk 2020-02-10 11:14:22 -08:00