Andrey Konovalov 23107989be usb: raw-gadget: properly handle interrupted requests ... commit e8033bde45 upstream. Currently, if a USB request that was queued by Raw Gadget is interrupted (via a signal), wait_for_completion_interruptible returns -ERESTARTSYS. Raw Gadget then attempts to propagate this value to userspace as a return value from its ioctls. However, when -ERESTARTSYS is returned by a syscall handler, the kernel internally restarts the syscall. This doesn't allow userspace applications to interrupt requests queued by Raw Gadget (which is required when the emulated device is asked to switch altsettings). It also violates the implied interface of Raw Gadget that a single ioctl must only queue a single USB request. Instead, make Raw Gadget do what GadgetFS does: check whether the request was interrupted (dequeued with status == -ECONNRESET) and report -EINTR to userspace. Fixes: f2c2e71764 ("usb: gadget: add raw-gadget interface") Cc: stable <stable@kernel.org> Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com> Link: https://lore.kernel.org/r/0db45b1d7cc466e3d4d1ab353f61d63c977fbbc5.1698350424.git.andreyknvl@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-11-08 14:11:03 +01:00
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atm	…
c67x00	…
cdns3	usb: cdnsp: Fixes issue with dequeuing not queued requests	2023-10-19 23:08:58 +02:00
chipidea	usb: chipidea: add workaround for chipidea PEC bug	2023-09-23 11:11:07 +02:00
class	…
common	usb: common: usb-conn-gpio: Prevent bailing out if initial role is none	2023-08-16 18:27:24 +02:00
core	usb: hub: Guard against accesses to uninitialized BOS descriptors	2023-10-19 23:08:55 +02:00
dwc2	usb: dwc2: Fix some error handling paths	2023-07-19 16:21:49 +02:00
dwc3	usb: dwc3: Soft reset phy on probe for host	2023-10-19 23:08:54 +02:00
early	…
gadget	usb: raw-gadget: properly handle interrupted requests	2023-11-08 14:11:03 +01:00
host	usb: xhci: xhci-ring: Use sysdev for mapping bounce buffer	2023-10-19 23:08:54 +02:00
image	…
isp1760	…
misc	usb: misc: onboard_hub: add support for Microchip USB2412 USB 2.0 hub	2023-10-25 12:03:08 +02:00
mon	…
mtu3	…
musb	usb: musb: Modify the "HWVers" register address	2023-10-19 23:08:55 +02:00
phy	usb: phy: mxs: fix getting wrong state with mxs_phy_is_otg_host()	2023-09-13 09:42:51 +02:00
renesas_usbhs	…
roles	Revert "usb: common: usb-conn-gpio: Set last role to unknown before initial detection"	2023-07-19 16:21:56 +02:00
serial	USB: serial: option: add Fibocom to DELL custom modem FM101R-GL	2023-10-25 12:03:14 +02:00
storage	usb: storage: set 1.50 as the lower bcdDevice for older "Super Top" compatibility	2023-11-08 14:11:03 +01:00
typec	usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()	2023-11-08 14:11:03 +01:00
usbip	…
Kconfig	…
Makefile	…
usb-skeleton.c	…